如何将网格元素对齐到右列？

Question

我在 CSS 网格显示中有固定数量的列，以及要放入这些列中的元素。要放置的元素数量小于列数。

我希望列按照添加元素的顺序向右对齐。在下面的代码中，4 个元素左对齐，另外 6 个元素右对齐：

.hello {
  border-style: solid;
  border-color: blue;
}

.container {
  display: grid;
  grid-gap: 5px;
  grid-template-columns: repeat(10, 5rem);
}

<div class="container">
  <div class="hello">1</div>
  <div class="hello">2</div>
  <div class="hello">3</div>
  <div class="hello">4</div>
</div>

我想更改上面的显示：

1    2    3    4    empty  empty  empty  empty  empty  empty

到

 empty  empty  empty  empty  empty  empty   1    2    3    4 

我尝试过各种

[align,justify]-[content,items]

的组合，但从来没有找到正确的组合。这可以通过 CSS 网格实现吗？

Answer 1

由于数量有限，您可以手动定义全部

.hello {
  border-style: solid;
  border-color: blue;
}

.container {
  display: grid;
  gap: 5px;
  grid-template-columns: repeat(10, 3rem);
  margin: 5px;
}

.container > :nth-last-child(1) {grid-column-end: -1}
.container > :nth-last-child(2) {grid-column-end: -2}
.container > :nth-last-child(3) {grid-column-end: -3}
.container > :nth-last-child(4) {grid-column-end: -4}
.container > :nth-last-child(5) {grid-column-end: -5}
.container > :nth-last-child(6) {grid-column-end: -6}
.container > :nth-last-child(7) {grid-column-end: -7}
.container > :nth-last-child(8) {grid-column-end: -8}
.container > :nth-last-child(9) {grid-column-end: -9}

<div class="container">
  <div class="hello">1</div>
  <div class="hello">2</div>
  <div class="hello">3</div>
  <div class="hello">4</div>
</div>

<div class="container">
  <div class="hello">1</div>
  <div class="hello">2</div>
  <div class="hello">3</div>
</div>

<div class="container">
  <div class="hello">1</div>
  <div class="hello">2</div>
  <div class="hello">3</div>
  <div class="hello">4</div>
  <div class="hello">5</div>
  <div class="hello">6</div>
</div>

但是最好使用flexbox：

.hello {
  border-style: solid;
  border-color: blue;
  width: 3rem;
}

.container {
  display: flex;
  gap: 5px;
  width: calc(10*3rem + 9*5px);
  margin: 5px;
}

.container > :first-child {margin-left:auto}

<div class="container">
  <div class="hello">1</div>
  <div class="hello">2</div>
  <div class="hello">3</div>
  <div class="hello">4</div>
</div>

<div class="container">
  <div class="hello">1</div>
  <div class="hello">2</div>
  <div class="hello">3</div>
</div>

<div class="container">
  <div class="hello">1</div>
  <div class="hello">2</div>
  <div class="hello">3</div>
  <div class="hello">4</div>
  <div class="hello">5</div>
  <div class="hello">6</div>
</div>