多个盒子横向居中


<!DOCTYPE html>
<html>
<head>
  <title>Test</title>
  <style>
    .parent { 100%;
      margin:0 auto;
      text-align:center;
      background-color:#ccc;
    }
    .children {
      height: 45px;
       60px;
      margin: 5px;
      text-align: center;
      line-height: 45px;
      border: 1px solid #006fc2;
      color: #006fc2;
      border-radius: 5px;
      display:inline-block;
    }

  </style>
</head>
<body>
<div class="parent">
  <div class="children">100</div>
  <div class="children">200</div>
  <div class="children">500</div>
  <div class="children">1000</div>

</div>
</body>
</html>