我应该如何将一个框放置在一个框的右上角，以使它的位置不受媒体查询引起的尺寸变化的影响。另外，如果我们将属性放在类内的CSS中，并将该类用于snap，则它不会检测到CSS中在相应类下提及的属性。这就是为什么在style属性下提及这些属性。请帮助
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* {
box-sizing: border-box;
}
h1 {
margin-bottom: 15px;
text-align: center;
font-size:175%;
}
p {
border: 1px solid black;
background-color: #808080;
width: 100%;
height: 150px;
margin-right: auto;
margin-left: auto;
font-family: Helvetica;
color: black;
position: relative;
}
/* Simple Responsive Framework. */
.row {
width: 100%;
}
/********** Large devices only **********/
@media (min-width: 992px) {
.col-lg-1, .col-lg-2, .col-lg-3, .col-lg-4, .col-lg-5, .col-lg-6, .col-lg-7, .col-lg-8, .col-lg-9, .col-lg-10, .col-lg-11, .col-lg-12 {
float: left;
}
.col-lg-1 {
width: 8.33%;
}
.col-lg-2 {
width: 16.66%;
}
.col-lg-3 {
width: 25%;
}
.col-lg-4 {
width: 33.33%;
margin: auto;
}
.col-lg-5 {
width: 41.66%;
}
.col-lg-6 {
width: 50%;
}
.col-lg-7 {
width: 58.33%;
}
.col-lg-8 {
width: 66.66%;
}
.col-lg-9 {
width: 74.99%;
}
.col-lg-10 {
width: 83.33%;
}
.col-lg-11 {
width: 91.66%;
}
.col-lg-12 {
width: 100%;
}
}
/********** Medium devices only **********/
@media (min-width: 768px) and (max-width: 991px) {
.col-md-1, .col-md-2, .col-md-3, .col-md-4, .col-md-5, .col-md-6, .col-md-7, .col-md-8, .col-md-9, .col-md-10, .col-md-11, .col-md-12 {
float: left;
}
.col-md-1 {
width: 8.33%;
}
.col-md-2 {
width: 16.66%;
}
.col-md-3 {
width: 25%;
}
.col-md-4 {
width: 33.33%;
}
.col-md-5 {
width: 41.66%;
}
.col-md-6 {
width: 50%;
}
.col-md-7 {
width: 58.33%;
}
.col-md-8 {
width: 66.66%;
}
.col-md-9 {
width: 74.99%;
}
.col-md-10 {
width: 83.33%;
}
.col-md-11 {
width: 91.66%;
}
.col-md-12 {
width: 100%;
margin: auto;
}
/********** Small devices only **********/
@media (max-width: 767px) {
.col-sm-1, .col-sm-2, .col-sm-3, .col-sm-4, .col-sm-5, .col-sm-6, .col-sm-7, .col-sm-8, .col-sm-9, .col-sm-10, .col-sm-11, .col-sm-12 {
float: left;
}
.col-sm-1 {
width: 8.33%;
}
.col-sm-2 {
width: 16.66%;
}
.col-sm-3 {
width: 25%;
}
.col-sm-4 {
width: 33.33%;
}
.col-sm-5 {
width: 41.66%;
}
.col-sm-6 {
width: 50%;
}
.col-sm-7 {
width: 58.33%;
}
.col-sm-8 {
width: 66.66%;
}
.col-sm-9 {
width: 74.99%;
}
.col-sm-10 {
width: 83.33%;
}
.col-sm-11 {
width: 91.66%;
}
.col-sm-12 {
width: 100%;
margin: auto;
}
}<!DOCTYPE html>
<html>
<head>
<title style="font-size: 125%">Module 2 Solution</title>
<link rel="stylesheet" href="module2.css">
</head>
<body>
<h1>Our menu</h1>
<div class="row">
<div style="padding: 1rem" class="col-lg-4 col-md-6 col-sm-12 "><p><span style="background-color: pink; position: relative; left: 92%">hello</span></p></div>
<div style="padding: 1rem" class="col-lg-4 col-md-6 col-sm-12 "><p></p></div>
<div style="padding: 1rem" class="col-lg-4 col-md-12 col-sm-12"><p></p></div>
</div>
</body>
</html>您可以使用position: absolute的span
https://developer.mozilla.org/en-US/docs/Web/CSS/position
position: absolute;
right: 0;
top: 0;
* {
box-sizing: border-box;
}
h1 {
margin-bottom: 15px;
text-align: center;
font-size:175%;
}
p {
border: 1px solid black;
background-color: #808080;
width: 100%;
height: 150px;
margin-right: auto;
margin-left: auto;
font-family: Helvetica;
color: black;
position: relative;
}
/* Simple Responsive Framework. */
.row {
width: 100%;
}
/* Large devices only */
@media (min-width: 992px) {
.col-lg-1, .col-lg-2, .col-lg-3, .col-lg-4, .col-lg-5, .col-lg-6, .col-lg-7, .col-lg-8, .col-lg-9, .col-lg-10, .col-lg-11, .col-lg-12 {
float: left;
}
.col-lg-1 {
width: 8.33%;
}
.col-lg-2 {
width: 16.66%;
}
.col-lg-3 {
width: 25%;
}
.col-lg-4 {
width: 33.33%;
margin: auto;
}
.col-lg-5 {
width: 41.66%;
}
.col-lg-6 {
width: 50%;
}
.col-lg-7 {
width: 58.33%;
}
.col-lg-8 {
width: 66.66%;
}
.col-lg-9 {
width: 74.99%;
}
.col-lg-10 {
width: 83.33%;
}
.col-lg-11 {
width: 91.66%;
}
.col-lg-12 {
width: 100%;
}
}
/* Medium devices only */
@media (min-width: 768px) and (max-width: 991px) {
.col-md-1, .col-md-2, .col-md-3, .col-md-4, .col-md-5, .col-md-6, .col-md-7, .col-md-8, .col-md-9, .col-md-10, .col-md-11, .col-md-12 {
float: left;
}
.col-md-1 {
width: 8.33%;
}
.col-md-2 {
width: 16.66%;
}
.col-md-3 {
width: 25%;
}
.col-md-4 {
width: 33.33%;
}
.col-md-5 {
width: 41.66%;
}
.col-md-6 {
width: 50%;
}
.col-md-7 {
width: 58.33%;
}
.col-md-8 {
width: 66.66%;
}
.col-md-9 {
width: 74.99%;
}
.col-md-10 {
width: 83.33%;
}
.col-md-11 {
width: 91.66%;
}
.col-md-12 {
width: 100%;
margin: auto;
}
/* Small devices only */
@media (max-width: 767px) {
.col-sm-1, .col-sm-2, .col-sm-3, .col-sm-4, .col-sm-5, .col-sm-6, .col-sm-7, .col-sm-8, .col-sm-9, .col-sm-10, .col-sm-11, .col-sm-12 {
float: left;
}
.col-sm-1 {
width: 8.33%;
}
.col-sm-2 {
width: 16.66%;
}
.col-sm-3 {
width: 25%;
}
.col-sm-4 {
width: 33.33%;
}
.col-sm-5 {
width: 41.66%;
}
.col-sm-6 {
width: 50%;
}
.col-sm-7 {
width: 58.33%;
}
.col-sm-8 {
width: 66.66%;
}
.col-sm-9 {
width: 74.99%;
}
.col-sm-10 {
width: 83.33%;
}
.col-sm-11 {
width: 91.66%;
}
.col-sm-12 {
width: 100%;
margin: auto;
}
}<!DOCTYPE html>
<html>
<head>
<title style="font-size: 125%">Module 2 Solution</title>
<link rel="stylesheet" href="module2.css">
</head>
<body>
<h1>Our menu</h1>
<div class="row">
<div style="padding: 1rem" class="col-lg-4 col-md-6 col-sm-12 "><p><span style="background-color: pink; position: absolute;
right: 0;
top: 0;">hello</span></p></div>
<div style="padding: 1rem" class="col-lg-4 col-md-6 col-sm-12 "><p></p></div>
<div style="padding: 1rem" class="col-lg-4 col-md-12 col-sm-12"><p></p></div>
</div>
</body>
</html>