原生JS可拖動彈窗效果實例代碼

2024-05-06 15:54:30

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這篇文章介紹了原生JS可拖動彈窗效果實例代碼，有需要的朋友可以參考一下

這個代碼不是我原創的，只是最近想學自己做一個很漂亮的彈窗，自己本來是不會怎么寫的，所以上網去找了下，感覺這個不錯，很簡單，很實用，入門很棒。我就改了下，使邏輯性和可讀性更好。

　　原作者已不可考。感謝原作者，阿門。

復制代碼代碼如下:

<html>
    <head>
        <meta http-equiv="Content-Type"content="text/html; charset=gb2312"/>
        <meta content="www.newxing.com" />
        <meta content="123@linhaibo.com" />
        <title>彈出窗口登錄效果</title>
        <style>
   body,#Mdown {
    margin: 0;
    padding: 0;
    text-align: center;
    font: normal 14px/180% Tahoma,sans-serif;
   }
   #loginBox {
    margin: 0 auto;
    padding: 0px;
    text-align: left;
    width: 280px;
    height: 150px;
    background: #EAEEFF;
    font-size: 9pt;
    border: 1px solid #829AFF;
    overflow: hidden;
    filter: alpha(opacity=90);
    opacity: 1;
   }
   #loginBox .title {
    text-align: left;
    padding-left: 10px;
    font-size: 11pt;
    border-bottom: 1px solid #829AFF;
    height: 25px;
    line-height: 25px;
    cursor: move;
   }
   #loginBox .t1 {
    float: left;
    font-weight: bold;
    color: #AA7B7B;
    text-decoration: none;
   }
   #loginBox .t2 {
    float: right;
    text-align: center;
    line-height: 18px;
    height: 18px;
    width: 18px;
    margin-top: 3px;
    margin-right: 2px;
    overflow: hidden;
    border: 1px solid #FF5889;
    background: #FFE0E9;
    cursor: pointer;
   }
   #loginBox .login {
    text-align: center;
    width: 100%;
    height: 100%;
   }
   input.submit {
    float: right;
    border: 1px solid #829AFF;
    FONT-SIZE: 9px;
    background: #EAEEFF;
    HEIGHT: 20px;
    margin-top: 5px;
    margin-right: 70px;
   }
   #bgDiv {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0px;
    left: 0px;
    right: 0px;
    background-color: #777;
    opacity: 0.7;
   }
        </style>
    </head>
<body>
<div>

        </div>
     <a href="javascript:">登錄</a>

        <div >
            <div>
                <span>登錄</span>
                <span action="#">
                    <table>
                        <tr>
                            <td>用戶名:</td><td><input type="text"name="username" size="12" maxlength="10"></td>
                        </tr>
                        <tr>
                            <td>密　碼:</td><td><input type="text"name="password" size="12" maxlength="10"></td>
                        </tr>
                        <tr>
                            <td></td><td><button type="submit">登陸</button></td>
                        </tr>
                    </table>
                </form>
            </div>
        </div>

    <script type="text/javascript">
   var IsMousedown, LEFT, TOP, login;

   document.getElementById("Mdown").onmousedown=function(e) {
    login = document.getElementById("loginBox");
    IsMousedown = true;
    e = e||event;
    LEFT = e.clientX - parseInt(login.style.left);
    TOP = e.clientY - parseInt(login.style.top);

    document.onmousemove = function(e) {
     e = e||event;
     if (IsMousedown) {
      login.style.left = e.clientX - LEFT + "px";
      login.style.top = e.clientY - TOP + "px";
     }
    }

    document.onmouseup=function(){
     IsMousedown=false;
    }
   }
        </SCRIPT>
</body>
</html>