jquery手写遮罩层

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>弹层</title>
    <style>
      /* 弹层 */
      .get-mask {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.7);
        z-index: 99;
      }
      .get-mask-hidden {
        overflow-y: hidden !important;
        padding-right: 15px;
      }
      .card {
        display: flex;
        flex-direction: column;
        position: relative;
        top: 30%;
        left: 50%;
        transform: translateX(-50%);
        padding-top: 39px;
        padding-left: 29px;
        width: 519px;
        height: 250px;
        background: linear-gradient(0deg, #5458e0 0%, #7578f0 100%);
        border-radius: 4px;
        z-index: 999;
      }
      .closeImg {
        position: absolute;
        top: -68px;
        right: -60px;
        cursor: pointer;
      }
    </style>
  </head>
  <body>
    <button class="cal-btn">btn</button>
    <div class="get-mask">
      <div class="card">
        <img
          class="closeImg"
          src="http://file.cc/ui/lgw-school/cn/images/finance/act_pup_close.png"
          alt=""
        />
        1
      </div>
    </div>
    <script
      crossorigin="anonymous"
      integrity="sha512-894YE6QWD5I59HgZOGReFYm4dnWc1Qt5NtvYSaNcOP+u1T9qYdvdihz0PPSiiqn/+/3e7Jo4EaG7TubfWGUrMQ=="
      src="https://lib.baomitu.com/jquery/3.6.0/jquery.min.js"
    ></script>
    <script>
      $(".cal-btn").click(function () {
        $("html,body").animate(
          {
            scrollTop: "0",
          },
          100
        );
        $(".get-mask").show();
        $("body").addClass("get-mask-hidden");
      });
      $(".closeImg").click(function (e) {
        e.stopPropagation();
        $("body").removeClass("get-mask-hidden");
        $(".get-mask").hide();
      });
    </script>
  </body>
</html>
jquery手写遮罩层

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