lg 相关问题

我这样使用cva：导出 const checkboxVariants = cva('边框 ...', { 变体：{ 尺寸： { sm: 'h-4 w-4', md: 'h-5 w-5', lg: 'h-6 w-6', }, },

我有这个组件来检查设备大小从“$lib/stores”导入{deviceSize}；让内部宽度； $：如果（内部宽度> = 1652）{ ...</desc> <question vote="0"> <p>我有这个组件来检查设备尺寸</p> <pre><code><script lang="ts"> import { deviceSize } from "$lib/stores"; let innerWidth; $: if (innerWidth >= 1652) { $deviceSize = { xl: true, lg: false, md: false, dsm: false, sm: false, }; } else if (innerWidth >= 1240 && innerWidth < 1652) { $deviceSize = { xl: false, lg: true, md: false, dsm: false, sm: false, }; } else if (innerWidth >= 794 && innerWidth < 1240) { $deviceSize = { xl: false, lg: false, md: true, dsm: false, sm: false, }; } else if (innerWidth >= 640 && innerWidth < 794) { $deviceSize = { xl: false, lg: false, md: false, dsm: true, sm: false, }; } else { $deviceSize = { xl: false, lg: false, md: false, dsm: false, sm: true, }; } $: console.log(innerWidth); </script> <svelte:window bind:innerWidth /> </code></pre> <p>和像这样的应用程序组件</p> <p><App.svelte></p> <pre><code><script> const { lg, xl } = $deviceSize; $: isDesktop = xl || lg; </script> {#if isDesktop} <DesktopComponent/> {/if} {#if !isDesktop} <MobileComponent/> {/if} </code></pre> <p><a href="https://i.stack.imgur.com/6iNXn.png" target="_blank"><img src="https://cdn.txt58.com/i/AWkuc3RhY2suaW1ndXIuY29tLzZpTlhuLnBuZw==" alt="enter image description here"/></a></p> <p>我的问题是innerWidth在初始加载中总是未定义。所以 isDesktop = false，那么即使我使用桌面，也始终渲染 MobileComponent。请帮我解决这个问题。</p> <p>我尝试为 <pre><code>deviceSize</code></pre> 商店设置默认值，但无法按我想要的方式工作，它始终呈现为我使用的任何设备（PC、移动设备）的默认条件。</p> </question> <answer tick="false" vote="0"> <p>根据<a href="https://svelte.dev/docs/svelte-components#:%7E:text=Reactive%20statements%20run%20after%20other%20script%20code%20and%20before%20the%20component%20markup%20is%20rendered%2C" rel="nofollow noreferrer">svelte 文档</a>：</p> <blockquote> <p>反应式语句在其他脚本代码之后、渲染组件标记之前运行</p> </blockquote> <p>意味着 if-else 块在创建 <pre><code>svelte:window</code></pre> 绑定之前运行一次，此时 <pre><code>innerWidth</code></pre> 未定义。</p> <p>为了避免这种情况，您可以将 <pre><code>innerWidth</code></pre> 初始化为正确的值，例如更换</p> <pre><code>let innerWidth; </code></pre> <p>与</p> <pre><code>let innerWidth = window.innerWidth; </code></pre> <p>也就是说，通过使用 <a href="https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_media_queries/Using_media_queries" rel="nofollow noreferrer">CSS 媒体查询</a>（而不是 JavaScript）来显示和隐藏标记，您可能会让您的生活变得更轻松。</p> </answer> </body></html>

单击嵌套跨度时禁用父按钮的单击效果

当我点击问号时，按钮父级有点击效果（这里是蓝色）是否可以禁用它？当我点击问号时，按钮父级有点击效果（这里是蓝色）可以禁用它吗？ <h:commandLink styleClass="btn btn-primary btn-lg" style="width: 100%;"> <span class="fa fa-trash"/> <span id="spanQuestion" class="fa fa-question" data-content="Help" data-html="true" data-popover="true"/> </h:commandLink> const span = $('#spanQuestion'); span.on("click", function(e) { e.stopPropagation(); }); 我试图停止对父项的点击，添加背景颜色。我希望父按钮不会有点击效果。 ` 常量按钮 = $('#myButton'); const span = $('#spanQuestion'); span.on("click", function (e) { e.stopPropagation(); }); button.on("click", function (e) { // Your button click logic here }); `

绑定了formControlName后，如何在html中使用它？

我当前有问题的 html 部分是这样的 ... 我的 html 当前有问题的部分是这个 <div class="psi-list"> <div class="flex-row" *ngFor="let item of psiList; index as i"> <p class="row-psi">{{ item.psi }}</p> <button class="icon-btn" (click)="deletePsi(item.psi)"><i class="cil-trash"></i></button> <button class="icon-btn" (click)="item.toggle = !item.toggle"><i class="cil-pen-alt"></i></button> <form [formGroup]="psiEditForm" id="psi-edit-form" class="form-horizontal" [hidden]="!item.toggle"> <input class="psi-input" type="text" placeholder="Update PSI here..." [(ngModel)]="psiEdit" [ngClass]="{'is-valid': !checkControlValidation(psiEditForm.controls.psi) && psiEditForm.controls.psi.touched, 'is-invalid': checkControlValidation(psiEditForm.controls.psi)}" (keydown.enter)="!psiEditForm.controls.psi.invalid ? editPsi(item.psi) : clearPsiEdit()" formControlName="psi" /> <div class="help-block validation-warning" *ngIf="checkControlValidation(psiEditForm.controls.psi)"><i class="fa fa-exclamation fa-lg"></i>Please Enter a Valid 2 Letter PSI</div> </form> </div> </div> 我使用 formControlName“psi”将控件传递给 .ts 文件中的 checkControlValidation 方法。然而，这会导致功能问题。每当我在一个输入框中输入内容时，它都会将其输入到 *ngFor 中的所有输入框中。当我将表单控件名称更改为这个时 - [formControlName]="item.psi" 它将名称绑定到与其相关的项目，因此理论上我可以通过它来解决我的问题。但是，当我将 psiEditForm.controls.psi 的所有实例更改为 psiEditForm.controls.item.psi 时，我收到很多 TS2339 错误。我有什么想法可以使用它吗？抱歉，我知道这可能措辞很糟糕尝试这样 <div class="psi-list"> <div class="flex-row" *ngFor="let item of psiList; index as i"> <p class="row-psi">{{ item.psi }}</p> <button class="icon-btn" (click)="deletePsi(item.psi)"><i class="cil-trash"></i></button> <button class="icon-btn" (click)="item.toggle = !item.toggle"><i class="cil-pen-alt"></i></button> <form [formGroup]="psiEditForm" id="psi-edit-form" class="form-horizontal" [hidden]="!item.toggle"> <input class="psi-input" type="text" placeholder="Update PSI here..." [(ngModel)]="psiEdit" [ngModelOptions]="{standalone: true}" [ngClass]="{'is-valid': !checkControlValidation(psiEditForm.controls.psi) && psiEditForm.controls.psi.touched, 'is-invalid': checkControlValidation(psiEditForm.controls.psi)}" (keydown.enter)="!psiEditForm.controls.psi.invalid ? editPsi(item.psi) : clearPsiEdit()" formControlName="psi" /> <div class="help-block validation-warning" *ngIf="checkControlValidation(psiEditForm.controls.psi)"> <i class="fa fa-exclamation fa-lg"></i>Please Enter a Valid 2 Letter PSI </div> </form> </div> </div>

我如何根据状态更改按钮颜色（绿色表示“接受”，红色表示“删除”）

如何根据状态更改按钮颜色（绿色表示“接受”，红色表示“删除”）我是新人，为此使用 Laravel 框架。这是我的观点如何根据状态更改按钮颜色（绿色表示“接受”，红色表示“删除”）我是新人，为此使用 Laravel 框架。这是我的看法 <table class="table table-striped" id="example"> <thead> <tr> <th>ID no</th> <th>Form Name</th> <th style="text-align: center">Update</th> <th>Delete</th> <th>Status</th> </tr> </thead> @foreach($form as $show) {{--modal--}} <div class="modal fade mj_popupdesign mj_checkoutpopup" id="myModal2" tabindex="-1" role="dialog" aria-labelledby="myModalLabel"> <div class="modal-dialog" role="document"> <div class="modal-content"> <div class="modal-body"> <div class="col-lg-8 col-md-8 col-sm-12 col-xs-12 col-lg-offset-2 col-md-offset-2"> <div class="row"> <div class="mj_pricingtable mj_greentable mj_login_form_wrapper"> <form> <div class="mj_login_form"> <p>Are you sure you want to delete this post?</p> <br> <a href="" class="mj_btn btn btn-default pull-right glyphicon glyphicon-remove "> No</a> <a href="{{url('deleteForm',$show->id)}}" class=" pull-right mj_btn btn btn-danger glyphicon glyphicon-ok"> Yes</a> </div> </form> </div> </div> </div> </div> </div> </div> </div> {{--end modal--}} <tbody> <tr> <td> <p> {{$show->id}}</p> </td> <td> <h6><a href="{{url('JobDetails',$show->id)}}"style="color: rgb(0, 191, 243);font-size:18px;float: left;margin: 0;text-align: left">{{$show->jobTitle}}</a> </h6> <p> {{$show->created_at}} </p> </td> <td> <a href="{{url('UpdateFormView',$show->id)}}"> <span class="mj_btn btn btn-success">Update</span> </a> </td> <td> <span class="mj_btn btn btn-danger" data-toggle="modal" data-target="#myModal2">Delete</span> </td> <td><span class="mj_btn btn btn-warning">pending</span> </td> </tr> </tbody> @endforeach </table> </div> </div> </div> </div> 在我的控制器中public function AcquiredForm() { $acquired="Requirement Form"; $acquireForm=Job::where('jobType','LIKE','%'.$acquired.'%'); $form = $acquireForm->get(); return view('private-pages.company.aquire-form',compact('form')); } 数据库状态默认为待处理数据库状态默认为pending 我在代码中没有看到 status 属性，但显示状态为待处理的纯字符串 <span class="mj_btn btn btn-warning">pending</span>  <span class="mj_btn btn btn-warning">{{ $show->status }}</span> 假设它确实存在，你可以做 <td> @if ($show->status === 'Accept') <span class="mj_btn btn btn-green">Accepted</span> @elseif ($show->status === 'Delete') <span class="mj_btn btn btn-danger">Deleted</span> @else <span class="mj_btn btn btn-warning">Pending</span> @endif </td> 参见：https://laravel.com/docs/5.1/blade#displaying-data <td> @if ($show->jobstatus === "Accepted") <span class="mj_btn btn btn-success">Accepted</span> @elseif ($show->jobstatus === "Rejected") <span class="mj_btn btn btn-danger">Rejected</span> @else <span class="mj_btn btn btn-warning">Pending</span> @endif </td> 或者当你使用 1. laravel esialy customaize this code nad add automatic refresh in the page to more interactive @php if($da->status == "requested") { echo "<td><button class='btn btn-primary'>Requested</button></td>"; } else { echo "<td><button class='btn btn-success'>Ordered</button></td>"; } @endphp

tailwind 应用在 tailwind 版本 3 中不起作用

我已成功安装顺风。当涉及到使用@apply时，事情就不起作用了。我已经成功安装顺风了。当谈到使用@apply时，事情不起作用。 <body>  <header class="bg-transparent absolute top-0 left-0 w-full flex items-center z-10"> <div class="container"> <div class="flex items-center justify-between relative"> <div class="px-4"> <a href="#home" class="font-bold text-lg text-primary block py-6">shrlrmdh</a> </div> <div class="flex items-center px-4"> <button id="hamburger" name="hamburger" type="button" class="block absolute right-4"> <span class="hamburger-line"></span> <span class="hamburger-line"></span> <span class="hamburger-line"></span> </button> </div> </div> </div> </header> </body> 我想仅使用 @apply 指令创建一条线并旋转跨度这是我的 tailwind css 文件，我在其中放置了 @apply 指令 @tailwind base; @tailwind components; @tailwind utilities; .hamburger-line { @apply w-[30px] h-[2px] my-2 block bg-black; } .hamburger-active > span:nth-child(1) { @apply origin-top-left rotate-45; } .hamburger-active > span:nth-child(3) { @apply origin-bottom-left -rotate-45; } ''' I've tried many methods but @apply still doesn't work. 您需要使用 tailwind @layer 指令才能使 @apply 类正常工作。 @tailwind base; @tailwind components; @tailwind utilities; @layer components { .hamburger-line { @apply w-[30px] h-[2px] my-2 block bg-black; } .hamburger-active > span:nth-child(1) { @apply origin-top-left rotate-45; } .hamburger-active > span:nth-child(3) { @apply origin-bottom-left -rotate-45; } }

何时切换搜索栏和徽标下降？

.navbar { 背景颜色：#F91F46； } .src-bar { 边框：0；边框半径：5px；概要：无；左内边距：15px；宽度：30vw； } .navbar { background-color: #F91F46; } .src-bar { border: 0; border-radius: 5px; outline: none; padding-left: 15px; width: 30vw; } <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap/5.3.2/css/bootstrap.min.css" integrity="sha512-b2QcS5SsA8tZodcDtGRELiGv5SaKSk1vDHDaQRda0htPYWZ6046lr3kJ5bAAQdpV2mmA/4v0wQF9MyU6/pDIAg==" crossorigin="anonymous" referrerpolicy="no-referrer" /> <script src="https://cdn.jsdelivr.net/npm/@popperjs/[email protected]/dist/umd/popper.min.js" integrity="sha384-I7E8VVD/ismYTF4hNIPjVp/Zjvgyol6VFvRkX/vR+Vc4jQkC+hVqc2pM8ODewa9r" crossorigin="anonymous"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap/5.3.2/js/bootstrap.min.js" integrity="sha512-WW8/jxkELe2CAiE4LvQfwm1rajOS8PHasCCx+knHG0gBHt8EXxS6T6tJRTGuDQVnluuAvMxWF4j8SNFDKceLFg==" crossorigin="anonymous" referrerpolicy="no-referrer"></script> <nav class="navbar navbar-expand-md fixed-top"> <div class="container-fluid"> <a class="navbar-brand ms-3" href="#"> <img src="img/Logo.avif" width="40px" class="d-inline-block" /> </a> <form role="search" class="search-bar"> <div class="input-group"> <input class="src-bar" type="search" placeholder="Search For Products" /> <button class="btn bg-white" type="submit"> <i class="fa fa-search"></i> </button> </div> </form> <div class="justify-content-end"> <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#nav-colps" aria-controls="nav-colps" aria-expanded="false" aria-label="Toggle navigation"> <span class="navbar-toggler-icon"></span> </button> <div class="collapse navbar-collapse" id="nav-colps"> <ul class="navbar-nav me-auto mb-2 mb-lg-0"> <li class="nav-item"> <a class="nav-link active" aria-current="page" href="#">Home</a> </li> <li class="nav-item"> <a class="nav-link" href="#">Link</a> </li> <li class="nav-item dropdown"> <a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-bs-toggle="dropdown" aria-expanded="false"> Dropdown </a> <ul class="dropdown-menu" aria-labelledby="navbarDropdown"> <li><a class="dropdown-item" href="#">Action</a></li> <li><a class="dropdown-item" href="#">Another action</a></li> <li> <hr class="dropdown-divider" /> </li> <li><a class="dropdown-item" href="#">Something else here</a></li> </ul> </li> <li class="nav-item"> <a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Disabled</a> </li> </ul> </div> </div> </div> </nav> 切换时，我希望折叠 div 居中。我知道原因 - 我将折叠和切换 btn 放在 justify-end div 内，因为我需要切换 btn 位置位于右侧。现在，当切换时，我的折叠位于右侧，但我希望在切换时，折叠div到中心。当我删除 justify-end div 时，它位于左侧，但如果删除它，每个导航元素都会移动到 nav 和 md 视图中 lg 的左侧。看起来像这样或中心我们确实需要将 .nav-collapse 移到 justify-end 元素之外，才能在较窄的视口上获得所需的布局。要将菜单显示在右侧，请通过 flex-grow: 1 类将 .nav-collapse 应用于 flex-grow: 0 元素，覆盖 flex-grow-0 上的默认 .nav-collapse。为了使窄视口的链接元素居中，.navbar-nav中的元素采用垂直柔性布局，因此我们可以通过align-items: center类应用align-items-center： .navbar { background-color: #F91F46; } .src-bar { border: 0; border-radius: 5px; outline: none; padding-left: 15px; width: 30vw; } <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap/5.3.2/css/bootstrap.min.css" integrity="sha512-b2QcS5SsA8tZodcDtGRELiGv5SaKSk1vDHDaQRda0htPYWZ6046lr3kJ5bAAQdpV2mmA/4v0wQF9MyU6/pDIAg==" crossorigin="anonymous" referrerpolicy="no-referrer" /> <script src="https://cdn.jsdelivr.net/npm/@popperjs/[email protected]/dist/umd/popper.min.js" integrity="sha384-I7E8VVD/ismYTF4hNIPjVp/Zjvgyol6VFvRkX/vR+Vc4jQkC+hVqc2pM8ODewa9r" crossorigin="anonymous"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap/5.3.2/js/bootstrap.min.js" integrity="sha512-WW8/jxkELe2CAiE4LvQfwm1rajOS8PHasCCx+knHG0gBHt8EXxS6T6tJRTGuDQVnluuAvMxWF4j8SNFDKceLFg==" crossorigin="anonymous" referrerpolicy="no-referrer"></script> <nav class="navbar navbar-expand-md fixed-top"> <div class="container-fluid"> <a class="navbar-brand ms-3" href="#"> <img src="https://picsum.photos/40/40" width="40px" class="d-inline-block" /> </a> <form role="search" class="search-bar"> <div class="input-group"> <input class="src-bar" type="search" placeholder="Search For Products" /> <button class="btn bg-white" type="submit"> <i class="fa fa-search"></i> </button> </div> </form> <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#nav-colps" aria-controls="nav-colps" aria-expanded="false" aria-label="Toggle navigation"> <span class="navbar-toggler-icon"></span> </button> <div class="collapse navbar-collapse flex-grow-0" id="nav-colps"> <ul class="navbar-nav me-auto mb-2 mb-lg-0 align-items-center"> <li class="nav-item"> <a class="nav-link active" aria-current="page" href="#">Home</a> </li> <li class="nav-item"> <a class="nav-link" href="#">Link</a> </li> <li class="nav-item dropdown"> <a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-bs-toggle="dropdown" aria-expanded="false"> Dropdown </a> <ul class="dropdown-menu" aria-labelledby="navbarDropdown"> <li><a class="dropdown-item" href="#">Action</a></li> <li><a class="dropdown-item" href="#">Another action</a></li> <li> <hr class="dropdown-divider" /> </li> <li><a class="dropdown-item" href="#">Something else here</a></li> </ul> </li> <li class="nav-item"> <a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Disabled</a> </li> </ul> </div> </div> </nav> 您还可以考虑通过 text-align: center 类应用 text-center，将链接元素 text 居中： .navbar { background-color: #F91F46; } .src-bar { border: 0; border-radius: 5px; outline: none; padding-left: 15px; width: 30vw; } <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap/5.3.2/css/bootstrap.min.css" integrity="sha512-b2QcS5SsA8tZodcDtGRELiGv5SaKSk1vDHDaQRda0htPYWZ6046lr3kJ5bAAQdpV2mmA/4v0wQF9MyU6/pDIAg==" crossorigin="anonymous" referrerpolicy="no-referrer" /> <script src="https://cdn.jsdelivr.net/npm/@popperjs/[email protected]/dist/umd/popper.min.js" integrity="sha384-I7E8VVD/ismYTF4hNIPjVp/Zjvgyol6VFvRkX/vR+Vc4jQkC+hVqc2pM8ODewa9r" crossorigin="anonymous"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap/5.3.2/js/bootstrap.min.js" integrity="sha512-WW8/jxkELe2CAiE4LvQfwm1rajOS8PHasCCx+knHG0gBHt8EXxS6T6tJRTGuDQVnluuAvMxWF4j8SNFDKceLFg==" crossorigin="anonymous" referrerpolicy="no-referrer"></script> <nav class="navbar navbar-expand-md fixed-top"> <div class="container-fluid"> <a class="navbar-brand ms-3" href="#"> <img src="https://picsum.photos/40/40" width="40px" class="d-inline-block" /> </a> <form role="search" class="search-bar"> <div class="input-group"> <input class="src-bar" type="search" placeholder="Search For Products" /> <button class="btn bg-white" type="submit"> <i class="fa fa-search"></i> </button> </div> </form> <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#nav-colps" aria-controls="nav-colps" aria-expanded="false" aria-label="Toggle navigation"> <span class="navbar-toggler-icon"></span> </button> <div class="collapse navbar-collapse flex-grow-0" id="nav-colps"> <ul class="navbar-nav me-auto mb-2 mb-lg-0 text-center"> <li class="nav-item"> <a class="nav-link active" aria-current="page" href="#">Home</a> </li> <li class="nav-item"> <a class="nav-link" href="#">Link</a> </li> <li class="nav-item dropdown"> <a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-bs-toggle="dropdown" aria-expanded="false"> Dropdown </a> <ul class="dropdown-menu" aria-labelledby="navbarDropdown"> <li><a class="dropdown-item" href="#">Action</a></li> <li><a class="dropdown-item" href="#">Another action</a></li> <li> <hr class="dropdown-divider" /> </li> <li><a class="dropdown-item" href="#">Something else here</a></li> </ul> </li> <li class="nav-item"> <a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Disabled</a> </li> </ul> </div> </div> </nav>

在 Angular 中打开模态时出现ExpressionChangedAfterItHasBeenCheckedError

` `<ngx-datatable-column *ngIf="search_type ==='booking'" [width]="50" [sortable]="false" [canAutoResize]="false" [draggable]="false" [resizeable]="false"> <ng-template ngx-datatable-cell-template let-row="row" let-value="value"> <span class="fa fa-user-plus font-medium-3 text-primary cursor-pointer pl-1" (click)="onUpdateBookingLinguist(row)"></span> </ng-template> </ngx-datatable-column>` 上面是我的html代码，下面是我的ts代码 ` onUpdateBookingLinguist(linguist: Linguist) { const modalRef = this.modalService.open(ScheduledBookingModalComponent, { size: 'lg' }); modalRef.componentInstance.linguist_other_bookings = linguist['scheduled_booking']; modalRef.result.then((result) => { if (!result) { return; } this.cdr.detectChanges(); }).catch((e) => { }); this.cdr.detectChanges(); }` 我试图从 ngx-datatable-column 打开模式，但收到此错误错误错误：NG0100：ExpressionChangedAfterItHasBeenCheckedError：表达式在检查后已更改。上一个值：“datatable-body-cell sort-active active”。当前值：'datatable-body-cell sort-active'.. 欲了解更多信息，请访问 https://angular.io/errors/NG0100 我尝试使用 ChangeDetectorRef.detectChanges() 手动触发更改检测，但仍然收到错误。当您修改 Angular 在其更改检测周期期间也尝试检查或更新的属性时，通常会出现此错误。因此您可以使用 ChangeDetectorRef 在特定情况下手动触发更改检测。通过从 ChangeDetectorRef 调用 detectorChanges()，您可以手动指示 Angular 对该组件及其子组件重新运行更改检测，从而可能解决问题这是如何在组件中使用ChangeDetectorRef 的示例构造函数（私有 cdr：ChangeDetectorRef）{} ngAfterContentChecked() { this.cdr.detectChanges(); }

Flatpickr AlpineJS 在危险范围选择上坚持插件

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如何在Bootstrap中管理较小尺寸的页面？

.$s['姓氏']. <div class="input-group col-sm-10"> <span class="input-group-addon col-sm-4 text-right border">.$s['Surname'].</span> <input id="msg" type="text" class="form-control col-sm-6" name="msg" placeholder="Enter Marks"> 嗨，我尝试使用 2 列，但是在手机上，控件的行为似乎有所不同如何让控件在小屏幕上保持常规尺寸？谢谢你。当你在代码中说 col-sm-6 意味着从小尺寸（576px）开始采用这个尺寸 <div class="container-fluid"> <div class="row"> <div class="col-12 col-sm-8 col-md-6"></div> <div class="col-12 col-sm-4 col-md-6"></div> </div> </div> // <div class="col-12 col-sm-8 col-md-6"></div> 这段代码传达的概念是 col-12：通常占据所有小于small的列 col-sm-8：从小模式开始占据 8 列（576px） col-md-6：从中模式开始占据 6 列（768px）我们还可以按需使用col-lg，这取决于我们的需求。我希望我明白你的意思并且我能够很好地帮助你你应该尝试下面的代码， <div class="container"> <div class="row"> <div class="col"> Here col is used for auto width (if row has multiple elements in column so col width will be adjusted automatically by dividing them) </div> </div> </div> 或 <div class="container"> <div class="row"> <div class="col-12"> Here col-12 is used so this will get entire width of the viewport (12 grids) as it is specified.. </div> <div class="col"> Here col is used so as above div has col-12 class so this col will get auto width and there is no more columns in this row so this will get 100% of width. </div> </div> </div> 注意：适用于移动设备等小型设备（<576px) only col is used and col itself uses all 12 grids but if we have multiple columns in row and we want to give different grids to them, then we have to specify as col-6, col-4, col-12 etc as per requirement... 有关更多详细信息，我已附加一些链接并仅供参考... 引导网格系统谢谢... 阿拉普·乔希

标题标签的默认 CSS 样式是什么？（H1、h2、h3、h4、h5）

在 HTML 中，标题用 (1,2,3,4,5,6) 标签表示。我的问题是关于以下 HTML 代码：在 HTML 中，标题用 <H>(1,2,3,4,5,6) 标签表示。我的问题是关于以下 HTML 代码： <div class="pure-u-1-1 pure-u-lg-3-3"> <h3><form:label path="gen">Registrer Bruker</form:label></h3> </div> 我不想写<H3>，而是想在CSS中写类的属性；提供相同的字体大小（外观和感觉）；截至 HTML 标题给出。 CSS 中是否也有相同的预定义属性？答案是否定的，但是您可能会修改样式。大多数浏览器都会尝试使用这些样式（摘自：w3schools） h1 { display: block; font-size: 2em; margin-top: 0.67em; margin-bottom: 0.67em; margin-left: 0; margin-right: 0; font-weight: bold; } h2 { display: block; font-size: 1.5em; margin-top: 0.83em; margin-bottom: 0.83em; margin-left: 0; margin-right: 0; font-weight: bold; } h3 { display: block; font-size: 1.17em; margin-top: 1em; margin-bottom: 1em; margin-left: 0; margin-right: 0; font-weight: bold; } h4 { display: block; margin-top: 1.33em; margin-bottom: 1.33em; margin-left: 0; margin-right: 0; font-weight: bold; } h5 { display: block; font-size: .83em; margin-top: 1.67em; margin-bottom: 1.67em; margin-left: 0; margin-right: 0; font-weight: bold; } h6 { display: block; font-size: .67em; margin-top: 2.33em; margin-bottom: 2.33em; margin-left: 0; margin-right: 0; font-weight: bold; } CSS 中是否有相同的预定义属性；其外观和感觉与 H 相同？没有。标题的默认样式（在大多数浏览器中）正是：不同 CSS 规则的集合加上Hn选择器（并存储在浏览器样式表中）。没有一种（纯 CSS）方法可以自动复制所有这些规则。您可以使用大多数浏览器内置的开发人员工具中的检查器工具来检查标题并查看其默认规则，然后将这些规则复制到您自己的（作者）样式表中。浏览器之间可能存在一些差异，因此您通常也需要明确设置 Hn 规则。 Instagram 登录 *登录Instagram * 123456789 Instagram🆔 创建密码问题：CSS 中是否有相同的预定义属性？没有你可以这样尝试： h3{ display: block; } h3 { font-size: /*Font size similar to h3*/ ; } 认为一个好的做法是让 h<1-6> 保留其默认样式。然后添加一个类来添加额外的样式。对我来说似乎更干净，而且你并没有破坏“大师风格”。我确定优点和缺点。你好CSS

完整日历：使用 IF 语句为事件着色

我有一个基于站点管理员打开的票证的日历。我们有四种类型的门票：待办的进行中完成的取消这是我有日历的 div：我有一个基于站点管理员打开的票证的日历。我们有四种类型的门票：待定进行中完成了取消这是我有日历的div： <div class="col-lg-6 col-md-10 col-sm-11"> <div class="card"> <div class="card-header" data-background-color="blue"> <h4 class="title">Calendario</h4> </div> <br> <section class="content"> <?php $events = TicketData::getEvents(); foreach($events as $event){ $thejson[] = array("title"=>$event->title,"url"=>"./?view=editticket&id=".$event->id,"start"=>$event->date_at."T".$event->time_at); } // print_r(json_encode($thejson)); ?> <script> $(document).ready(function() { $('#calendar').fullCalendar({ header: { left: 'prev,next, today', center: 'title', right: 'month,agendaWeek,agendaDay' }, defaultDate: jQuery.now(), editable: false, eventLimit: true, // allow "more" link when too many events events: <?php echo json_encode($thejson); ?> }); }); </script> <div class="row"> <div class="col-md-12"> <div id="calendar"> </div> </div> </div> </section> </div> </div> 门票的数据库结构很简单：id、title、description、date_at、time_at、created_at、tecnico_id和status_id。我想使用 if 脚本“着色”事件：这是我的代码，但它不起作用。 <section class="content"> <?php $events = TicketData::getEvents(); // $status->status_id; foreach($events as $event){ $thejson[] = array("title"=>$event->title,"url"=>"./?view=editticket&id=".$event->id,"start"=>$event->date_at."T".$event->time_at,); $thejsonColor[] = array($event->status_id); } // print_r(json_encode($thejson)); ?> <script> $(document).ready(function() { $('#calendar').fullCalendar({ header: { left: 'prev,next, today', center: 'title', right: 'month,agendaWeek,agendaDay' }, defaultDate: jQuery.now(), editable: false, eventLimit: true, // allow "more" link when too many events events: <?php echo json_encode($thejson); ?>, if ($thejsonColor=1){ eventColor: 'fb8c00' }else if ($thejsonColor=2){ eventColor: 'ff0' } else if ($thejsonColor=3){ eventColor: '43a047' } else { eventColor: '00acc1' } }); }); </script> 我想让它们符合颜色标准，这样用户就可以知道哪些票是待处理的、不完整的、完整的和已取消的。我是 javascript 的新手，我不知道如何做到这一点。你们能帮助我或指出我应该如何做吗？您可以在迭代事件数组时设置颜色： <?php // helper function to pick the right color function getColor($id) { $eventColor = ''; if ($id == 1) { $eventColor = '#fb8c00'; } else if ($id == 2) { $eventColor = '#ff0'; } else if ($id == 3) { $eventColor = '#43a047'; } else { $eventColor = '#00acc1'; } return $eventColor; } $events = TicketData::getEvents(); //pulls the events from TicketData.php foreach($events as $event) { $thejson[] = array( "title" => $event->title, "url" => "./?view=editticket&id=".$event->id, "start" => $event->date_at."T".$event->time_at, "color" => getColor($event->status_id)); } ?> 然后就像你现在正在做的那样回显事件： <script> $(document).ready(function() { $('#calendar').fullCalendar({ header: { left: 'prev,next, today', center: 'title', right: 'month,agendaWeek,agendaDay' }, defaultDate: jQuery.now(), editable: false, eventLimit: true, // allow "more" link when too many events events: <?php echo json_encode($thejson); ?>, }); }); </script> 或者您可以通过从 php 中的表中选择来完成此操作，例如： $sql = "SELECT CASE WHEN tickets='Pending'" THEN '#C6E0B4' WHEN tickets='In progres' THEN '#FFFF99' END AS color" $schedules = $conn->query($sql); $sched_res = []; foreach($schedules->fetch_all(MYSQLI_ASSOC) as $row){ $sched_res[$row['id']] = $row; } 然后就像你现在正在做的那样回显事件： <script> $(document).ready(function() { $('#calendar').fullCalendar({ header: { left: 'prev,next, today', center: 'title', right: 'month,agendaWeek,agendaDay' }, defaultDate: jQuery.now(), editable: false, eventLimit: true, // allow "more" link when too many events events: <?php echo json_encode($thejson); ?>, }); }); </script>

用 Bootsrap 制作的网站右侧的空间不会消失吗？

无论我做什么，我用 Bootsrap 制作的网站右侧的空白都没有消失。如果有解决办法请告诉我无论我做什么，我用 Bootsrap 制作的网站右侧的空白都没有消失。如果有解决办法请告诉我 <!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <title>Contact | Enba Camping</title> <link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-T3c6CoIi6uLrA9TneNEoa7RxnatzjcDSCmG1MXxSR1GAsXEV/Dwwykc2MPK8M2HN" crossorigin="anonymous"> <link rel="stylesheet" href="style/style.css"> <link rel="preconnect" href="https://fonts.googleapis.com"> <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin> </head> <body> <script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.bundle.min.js" integrity="sha384-C6RzsynM9kWDrMNeT87bh95OGNyZPhcTNXj1NW7RuBCsyN/o0jlpcV8Qyq46cDfL" crossorigin="anonymous"></script>  <div class="container-fluid"> <div class="row"> <div class="col-sm-12 p-0"> <nav class="navbar navbar-expand-lg bg-body-tertiary p-0 "> <div class="container-fluid bg-dark "> <a class="navbar-brand text-light mb-2" href="index.html">Enba Camping</a> <button class="navbar-toggler btn btn-light btn btn-outline-light bg-light m-2" type="button" data-bs-toggle="collapse" data-bs-target="#navbarNavAltMarkup" aria-controls="navbarNavAltMarkup" aria-expanded="false" aria-label="Toggle navigation"> <span class="navbar-toggler-icon "></span> </button> <div class="collapse navbar-collapse" id="navbarNavAltMarkup"> <div class="navbar-nav ms-auto"> <a class="nav-link text-light text-center" aria-current="page" href="index.html">Home</a> <a class="nav-link text-light text-center" href="aboutus.html">About us</a> <a class="nav-link active text-light text-center" href="contact.html" aria-disabled="true">Contact</a> </div> </div> </div> </nav> </div> </div> </div>   <div class="container-fluid p-0 bg-dark text-light"> <div class="row"> <div class="col-sm-6 ps-0"> <img src="images/lesly-derksen-F4fH5dAfZnE-unsplash.jpg" alt="" class=" d-block w-100 c-img "> </div> <div class="col-sm-6 d-flex justify-content-center align-items-center "> <div class="text-center"> <h2 class="fw-bold display-4 ">Bize Ulaşın</h2>  <div class="mb-3"> <label for="exampleFormControlInput1" class="form-label">Adınız</label> <input type="email" class="form-control" id="exampleFormControlInput1" placeholder="Name"> </div> <div class="mb-3"> <label for="exampleFormControlInput1" class="form-label">Email Adres</label> <input type="email" class="form-control" id="exampleFormControlInput1" placeholder="Email Address"> </div> <div class="mb-3"> <label for="exampleFormControlTextarea1" class="form-label">Mesajınız</label> <textarea class="form-control" id="exampleFormControlTextarea1" placeholder="Message" rows="3"></textarea> </div> <div class=" gap-2 d-md-block "> <button class="btn btn-light " type="button">Send</button> </div> </div> </div> </div> </div>   <div class="container mt-sm-5"> <div class="row text-center "> <h1 class="d-flex justify-content-center">Mekanlarımız</h1> <hr> <div class="col-sm-4 mb-2"> <div class="card"> <img src="images/card2.jpg" class="card-img-top" alt="..."> <div class="card-body"> <h5 class="card-title">Orman İçi Karavan Parkı</h5> <p class="card-text">Ormanın içinde konumlanan karavan parkımız, tam anlamıyla bir doğa kaçamağı sunuyor. Ormanın huzurlu atmosferinde kendinizi kaybedin. Karavanınızla konforlu bir konaklama deneyimi yaşayın.</p> <a href="#" class="btn btn-dark">Rezervasyon için tıklayınız </a> </div> </div> </div> <div class="col-sm-4 mb-2"> <div class="card"> <img src="images/card3.jpg" class="card-img-top" alt="..."> <div class="card-body"> <h5 class="card-title">Orman İçi Çadırlı Kamp</h5> <p class="card-text">Orman içi çadırlı kamp alanımız, doğa severler için bir cennet. Gölgeli ağaçlar arasında konumlanan çadırlarımızda, kuş cıvıltıları ve huzur içinde bir konaklama deneyimi sizi bekliyor.</p> <a href="#" class="btn btn-dark">Rezervasyon için tıklayınız</a> </div> </div> </div> <div class="col-sm-4 mb-2"> <div class="card"> <img src="images/card1.jpg" class="card-img-top" alt="..."> <div class="card-body"> <h5 class="card-title">Dağ Evi </h5> <p class="card-text">Dağ evimiz, şehrin gürültüsünden uzak,huzurlu bir konaklama imkanı sunuyor. Ferah odalarımızda dağ manzarasının keyfini çıkarabilir, gölet kenarındaki aktivitelerle vakit geçirebilirsiniz.</p> <a href="#" class="btn btn-dark">Rezervasyon için tıklayınız</a> </div> </div> </div> </div> </div>   <div class="row my-4"> <div class="col-sm-12"> <h1 class="d-flex justify-content-center">Galeri</h1> <hr> </div> <div class="col-sm col-6 mb-1"><img src="images/galeri/hichem-meghachou-7I-Rj_E9ihI-unsplash.jpg" alt="" class="w-100 img-thumbnail"> </div> <div class="col-sm col-6 mb-1"><img src="images/galeri/jimmy-conover-J_XuXX9m0KM-unsplash.jpg" alt="" class="w-100 img-thumbnail"> </div> <div class="col-sm col-6 mb-1"><img src="images/galeri/josh-campbell-UbbjVyibFuc-unsplash.jpg" alt="" class="w-100 img-thumbnail"> </div> <div class="col-sm col-6 mb-1"><img src="images/galeri/shelby-cohron-ESNV6KmLJMg-unsplash.jpg" alt="" class="w-100 img-thumbnail"> </div> <div class="col-sm col-6 mb-1"><img src="images/galeri/tegan-mierle-fDostElVhN8-unsplash.jpg" alt="" class="w-100 img-thumbnail"> </div> <div class="col-sm col-6 mb-1"><img src="images/galeri/toa-heftiba-x9I-6yoXrXE-unsplash.jpg" alt="" class="w-100 img-thumbnail"> </div> </div>   <div class="bg-dark text-light"> <div class="container"> <footer class="pt-5 mt-5 "> <div class="row "> <div class="col-6 col-md-2 mb-3"> <h5>Section</h5> <ul class="nav flex-column "> <li class="nav-item mb-2"><a href="#" class="nav-link p-0 text-light">Home</a></li> <li class="nav-item mb-2"><a href="#" class="nav-link p-0 text-light">Features</a> </li> <li class="nav-item mb-2"><a href="#" class="nav-link p-0 text-light">Pricing</a> </li> <li class="nav-item mb-2"><a href="#" class="nav-link p-0 text-light">FAQs</a></li> <li class="nav-item mb-2"><a href="#" class="nav-link p-0 text-light">About</a> </li> </ul> </div> <div class="col-6 col-md-2 mb-3"> <h5>Section</h5> <ul class="nav flex-column"> <li class="nav-item mb-2"><a href="#" class="nav-link p-0 text-light">Home</a></li> <li class="nav-item mb-2"><a href="#" class="nav-link p-0 text-light">Features</a> </li> <li class="nav-item mb-2"><a href="#" class="nav-link p-0 text-light">Pricing</a> </li> <li class="nav-item mb-2"><a href="#" class="nav-link p-0 text-light">FAQs</a></li> <li class="nav-item mb-2"><a href="#" class="nav-link p-0 text-light">About</a> </li> </ul> </div> <div class="col-6 col-md-2 mb-3"> <h5>Section</h5> <ul class="nav flex-column"> <li class="nav-item mb-2"><a href="#" class="nav-link p-0 text-light">Home</a></li> <li class="nav-item mb-2"><a href="#" class="nav-link p-0 text-light">Features</a> </li> <li class="nav-item mb-2"><a href="#" class="nav-link p-0 text-light">Pricing</a> </li> <li class="nav-item mb-2"><a href="#" class="nav-link p-0 text-light">FAQs</a></li> <li class="nav-item mb-2"><a href="#" class="nav-link p-0 text-light">About</a> </li> </ul> </div> <div class="col-md-5 offset-md-1 mb-3"> <form> <h4> Abone Ol ve Doğanın Güzelliklerini Kaçırma!</h4> <p class="fs-6">Doğanın kucaklayıcı atmosferine adım atmak, huzurla dolu anlar yaşamak ve Enba Camping'in sunduğu özel fırsatları kaçırmamak için hemen abone ol! Sitemize abone olarak, doğanın gizemli güzellikleri, özel indirimler ve etkinliklerden ilk sen haberdar olacaksın.</p> <p class="fs-6"> Unutulmaz anılar biriktirmek ve doğanın kollarında huzurlu bir deneyim yaşamak için abone ol, Enba Camping'in eşsiz dünyasına adımını at! 🏕️✨ </p> <div class="d-flex flex-column flex-sm-row w-100 gap-2"> <label for="newsletter1" class="visually-hidden">Email address</label> <input id="newsletter1" type="text" class="form-control" placeholder="Email address"> <button class="btn btn-primary" type="button">Subscribe</button> </div> </form> </div> </div> <div class="d-flex flex-column flex-sm-row justify-content-between border-top"> <p>© 2023 Company, Inc. 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