html - 如何创建具有等宽列的居中 CSS 网格？

Question

我想要一个菜单​​栏，其中所有菜单项的宽度都相同(与最宽的菜单项一样宽)。菜单项的数量可能会有所不同。如果有额外空间，菜单应在其容器内居中。

如果元素不能放在一行中，它们可能会换行，但它们仍应具有相同的宽度。像这样:

|    [   short   ] [loooooooong] [  between  ]    |
|    [  wrapped  ]                                |

我可以用 CSS 做到这一点吗？

我尝试使用 display:grid，但失败了:

.container { 
  border: 1px solid black;
  display:inline-block;
}

.menu { 
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(50px, -webkit-max-content));
  grid-template-columns: repeat(auto-fit, minmax(50px, max-content));
  justify-content: center;
  grid-gap: 10px;
  
  background: #eee;
}

.item { 
  border: 1px solid #aaa;
  background: yellow;
  white-space: nowrap;
}

<div class="container">
  <h2>Two items</h2>
  
  <p>
    These should have equal widths (as wide as the widest one is) and be centered within the container.
  </p>
  
  <div class="menu">
    <div class="item">Short</div>
    <div class="item">Looooooooooong</div>
  </div>
  
  <p>
    They are centered all right, but don't have equal widths.
  </p>

  <h2>Three items</h2>
  
  <p>
    These three should also have same width with each other.
  </p>
  
  <div class="menu">
    <div class="item">First item</div>
    <div class="item">Second item</div>
    <div class="item">Third</div>
  </div>

  <p>
    They are centered all right, but don't have equal widths.
  </p>
  
  <h2>So many items that they won't fit on one line</h2>

  <p>
    These should also have equal widths, but they should wrap to the next row. I don't care whether the second row is centered as long as the items are aligned with the row above.
  </p>
  
  <div class="menu">
    <div class="item">First item</div>
    <div class="item">Second item</div>
    <div class="item">Third item, a longer one</div>
    <div class="item">Fourth item</div>
    <div class="item">Fifth item</div>
    <div class="item">Sixth item</div>
    <div class="item">Seventh item</div>
    <div class="item">Eight item</div>
    <div class="item">Ninth item</div>
    <div class="item">Tenth item</div>
    <div class="item">Item number 11</div>
    <div class="item">Item number 12</div>
    <div class="item">Item number 13</div>
    <div class="item">Item number 14</div>
    <div class="item">Item number 15</div>
    <div class="item">Item number 16</div>
    <div class="item">Item number 17</div>
    <div class="item">Item number 18</div>
    <div class="item">Item number 19</div>
    <div class="item">Item number 20</div>
    <div class="item">Item number 21</div>
    <div class="item">Item number 22</div>
    <div class="item">Item number 23</div>
  </div>
  <p>
    They have equal widths, but the width is the min width given in minmax and the content doesn't fit within the item.
  </p>
</div>

(CodePen中相同:https://codepen.io/jarnoan/pen/gxrEpR)

问题Centered table-like layout with columns of equal widths using CSS?类似，但是按钮的数量是固定的，没有换行。

它不需要显示:网格。

Answer 1

您是否尝试过 1fr 1fr 1fr(每个代表整体的 1 个分数，在本例中为列)

其他人推荐使用 flexbox，但 css-grid 理论上可以做任何 flexbox 可以做的事情，但还有一个额外的好处是二维的(相对于只有 1 w/flexbox)。此外，css-grid 是在浏览器级别集成的，因此不依赖于任何框架。