如何在CSS网格中居中

网格以行和列布局的形式排列内容。CSS Grid也是如此。

使用Flex在CSS Grid中居中

将网格项设置为Flex容器 –

display: flex

居中垂直和水平对齐，请使用 –

align-items: center;
justify-content: center;

示例

让我们来看一个完整的示例：

<!DOCTYPE html>
<html>
<head>
   <title>Grid and Flex Example</title>
   <style>
      html,body {
         margin: 0;
         padding: 0;
      }

      .box {
         display: grid;
         grid-template-columns: 1fr 1fr;
         grid-template-rows: 100vh;
      }

      .first,
      .second {
         display: flex;
         align-items: center;
         justify-content: center;
      }

      .first {
         background-color: orange;
      }

      .second {
         background-color: yellow;
      }
   </style>
</head>
<body>
   <div class="box">
      <div class="first">Left</div>
      <div class="second">Right</div>
   </div>
</body>
</html>

输出

如何在CSS网格中居中

居中实现CSS Grid

我们也可以不使用Flex来进行居中。我们将网格容器设置为display: grid。当display属性设置为grid时，HTML元素成为了一个网格容器 –

grid-container {
   display: grid;
   grid-template-columns: 1fr 1fr;
   grid-auto-rows: 150px;
   grid-gap: 20px;
}

网格项使用相对定位设置 –

grid-item {
   position: relative;
   text-align: center;
}

示例

然而，

<!DOCTYPE html>
<html>
<head>
   <title>Grid</title>
   <style>
      grid-container {
         display: grid;
         grid-template-columns: 1fr 1fr;
         grid-auto-rows: 150px;
         grid-gap: 20px;
      }

      grid-item {
         position: relative;
         text-align: center;
      }

      grid-container {
         background-color: red;
         padding: 10px;
      }

      grid-item {
         background-color: orange;
      }
   </style>
</head>
<body>
   <grid-container>
      <grid-item>This is in the center</grid-item>
      <grid-item>This is in the center</grid-item>
   </grid-container>
</body>
</html>