具有固定宽度元素的 Css 网格，元素的间距/中心问题

Question

我目前正在使用具有固定高度和宽度的卡片组件进行 CSS 网格布局。在大屏幕上，我没有问题，装订线的大小合适。在小宽度上，我希望装订线始终与大屏幕上的一样，以避免卡片组件之间出现大间隙。

下面是示例代码，我们可以在其中切换不同的网格大小:

document.querySelectorAll("[data-width]").forEach((item) => {
  item.addEventListener("click", (event) => {
    document.querySelector(".cards-grid-layout").style.width =
      item.dataset.width;
  });
});

.cards-grid-layout {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(256px, 1fr));
  grid-gap: 56px 40px;
  margin: auto;
  max-width: 1144px;
  justify-items: center;
}

.card {
  width: 256px;
  height: 360px;
  display: inline-block;
  vertical-align: top;
  overflow: hidden;
  position: relative;
  margin-bottom: 0;
  border: 1px solid #ddd;
}

.card-image {
  height: 160px;
}

.card-image IMG {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.toolbar {
  max-width: 1144px;
  margin: 16px auto 36px auto;
}
.toolbar A {
  color: blue;
  border: 1px solid #DDD;
  padding: 8px;
  cursor: pointer;
}
.toolbar A:hover {
  background-color: #EEE;
}

<div class="toolbar">
  <a class="" data-width="1144px">Full width</a>
  <a class="" data-width="1080px">3 cards per line</a>
  <a class="" data-width="800px">2 cards per line</a>
  <a class="" data-width="480px">1 card per line</a>
</div>

<div class="cards-grid-layout">
  <div class="card">
    <div class="card-image">
      <img src="https://picsum.photos/265/160" />
    </div>
  </div>
  <div class="card">
    <div class="card-image">
      <img src="https://picsum.photos/265/160" />
    </div>
  </div>
  <div class="card">
    <div class="card-image">
      <img src="https://picsum.photos/265/160" />
    </div>
  </div>
  <div class="card">
    <div class="card-image">
      <img src="https://picsum.photos/265/160" />
    </div>
  </div>
  <div class="card">
    <div class="card-image">
      <img src="https://picsum.photos/265/160" />
    </div>
  </div>
  <div class="card">
    <div class="card-image">
      <img src="https://picsum.photos/265/160" />
    </div>
  </div>  
  
</div>

我的 css 网格具有以下代码:

.cards-grid-layout {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(256px, 1fr));
  grid-gap: 56px 40px;
  margin: auto;
  max-width: 1144px;
  justify-items: center;
}

还有我固定宽度/高度的卡片:

.card {
  width: 256px;
  height: 360px;
  display: inline-block;
  vertical-align: top;
  overflow: hidden;
  position: relative;
  margin-bottom: 0;
  border: 1px solid #ddd;
}

水平gutter为56px宽的大屏案例:

水平间距仍为 56px，但每张卡片的左侧/右侧都有空白区域的较小屏幕情况:

有没有办法解决这个问题？

Answer 1

只需使用 grid-template-columns: repeat(auto-fit, 256px) 始终具有相同的列宽并使用 justify-content:center 将它们居中/p>

document.querySelectorAll("[data-width]").forEach((item) => {
  item.addEventListener("click", (event) => {
    document.querySelector(".cards-grid-layout").style.width =
      item.dataset.width;
  });
});

.cards-grid-layout {
  display: grid;
  grid-template-columns: repeat(auto-fit, 256px);
  grid-gap: 56px 40px;
  margin: auto;
  max-width: 1144px;
  justify-items: center;
  justify-content: center;
}

.card {
  width: 256px;
  height: 360px;
  display: inline-block;
  vertical-align: top;
  overflow: hidden;
  position: relative;
  margin-bottom: 0;
  border: 1px solid #ddd;
}

.card-image {
  height: 160px;
}

.card-image IMG {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.toolbar {
  max-width: 1144px;
  margin: 16px auto 36px auto;
}
.toolbar A {
  color: blue;
  border: 1px solid #DDD;
  padding: 8px;
  cursor: pointer;
}
.toolbar A:hover {
  background-color: #EEE;
}

<div class="toolbar">
  <a class="" data-width="1144px">Full width</a>
  <a class="" data-width="1080px">3 cards per line</a>
  <a class="" data-width="800px">2 cards per line</a>
  <a class="" data-width="480px">1 card per line</a>
</div>

<div class="cards-grid-layout">
  <div class="card">
    <div class="card-image">
      <img src="https://picsum.photos/265/160" />
    </div>
  </div>
  <div class="card">
    <div class="card-image">
      <img src="https://picsum.photos/265/160" />
    </div>
  </div>
  <div class="card">
    <div class="card-image">
      <img src="https://picsum.photos/265/160" />
    </div>
  </div>
  <div class="card">
    <div class="card-image">
      <img src="https://picsum.photos/265/160" />
    </div>
  </div>
  <div class="card">
    <div class="card-image">
      <img src="https://picsum.photos/265/160" />
    </div>
  </div>
  <div class="card">
    <div class="card-image">
      <img src="https://picsum.photos/265/160" />
    </div>
  </div>  
  
</div>