修改系统默认 alert 弹框样式

最新推荐文章于 2023-02-08 22:01:17 发布

春风欲雨

最新推荐文章于 2023-02-08 22:01:17 发布

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分类专栏：前端小知识点 css 文章标签：修改alert弹框

本文链接：https://blog.youkuaiyun.com/WebDestiny/article/details/100689883

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源码：

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <title>Document</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
    <script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
    <style>
      #msg {
        width: 266px;
        position: fixed;
        z-index: 999;
        top: 49%;
        margin-top: -80px;
        left: 50%;
        margin-left: -133px;
        background: #fff;
        box-shadow: 5px 5px 8px #999;
        font-size: 17px;
        color: #666;
        border: 1px solid #f8f8f8;
        text-align: center;
        line-height: 2rem;
        display: inline-block;
        padding-bottom: 20px;
        border-radius: 2px;
      }

      #msg_top {
        background: #f8f8f8;
        padding: 5px 15px 5px 20px;
        text-align: left;
      }

      #msg_top span {
        font-size: 18px;
        float: right;
        cursor: pointer;
      }

      #msg_cont {
        padding: 15px 20px 20px;
        text-align: left;
      }

      #msg_clear {
        display: inline-block;
        color: #fff;
        padding: 1px 15px;
        background: skyblue;
        border-radius: 2px;
        margin: 0 auto;
        margin-right: 15px;
        cursor: pointer;
      }
    </style>
  </head>

  <body>
  </body>
  <script>
    window.alert = function alert(e) {
      $("body").append(
        '<div id="msg"><div id="msg_top">修改过的弹框<span class="msg_close">×</span></div><div id="msg_cont">' +
          e +
          '</div><div class="msg_close" id="msg_clear">确定</div></div>'
      );
      $(".msg_close").click(function() {
        $("#msg").remove();
      });
    };
  </script>
</html>