Question

我试图制作响应方形图像网格，每个网格由9个图像组成。

我只是使用简单的自举网格布局来制作网格 -

function clickCallback(value) {
  return () => alert('Hello ' + value);
}

我需要在（绝对定位）每个方格网格上添加叠加灰色低不透明度方块，以在每个网格的中心添加h2文本。我如何继续使用它，因为网格没有特定的高度？

Answer 1

你的意思是这样吗？

＆＃13;

<!DOCTYPE HTML>

<html>

<head>
  <style>
    body {
      height: 100%;
      display: flex;
      justify-content: center;
    }
    
    .grid {
      width: 80%;
      height: 100%;
      border: 1px solid red;
      position: relative;
    }
    
    .row {
      width: 100%;
      display: flex;
      flex-direction: row;
      justify-content: space-between;
    }
    
    .item {
      width: 30%;
      height: 100px;
      border: 1px solid blue;
    }
    
    .grid:after {
      content: "Heading Two Title"; /*allow to show up*/
      width: 100%;
      height: 100%; /*cover grid area*/
      position: absolute;
      top: 0;
      left: 0; /*make it stay on the grid*/
      background-color: #a0a0a0; /*instead of opacity choose a light gray color*/
      z-index: -1; /*place behind so as not to cover the grid elements*/
      display: flex;
      justify-content: center;
      align-items: center;
      font-size: 3em; /*make as big as needed*/
    }
  </style>
</head>

<body>
  <div class="grid">
    <div class="row">
      <div class="item"></div>
      <div class="item"></div>
      <div class="item"></div>
    </div>

    <div class="row">
      <div class="item"></div>
      <div class="item"></div>
      <div class="item"></div>
    </div>

    <div class="row">
      <div class="item"></div>
      <div class="item"></div>
      <div class="item"></div>
    </div>
  </div><!-- /grid -->
</body>

</html>

＆＃13;

响应方形网格上的透明覆盖

1 个答案: