滑鼠拖拽移動

技術標籤：javascript

滑鼠拖拽移

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        * {
            padding: 0;
            margin: 0;
        }
        
        a {
            text-decoration: none;
            color: #000;
        }
        
        .login {
            display: none;
            width: 512px;
            height: 280px;
            position: fixed;
            border: #ebebeb solid 1px;
            left: 50%;
            top: 50%;
            background-color: #fff;
            box-shadow: 0px 0px 20px #ddd;
            z-index: 999;
            transform: translate(-50%, -50%);
        }
        
        .login-title {
            width: 100%;
            margin: 10px 0 0 0;
            text-align: center;
            line-height: 40px;
            font-size: 18px;
            position: relative;
            cursor: move;
        }
        
        .login-title span {
            position: absolute;
            font-size: 12px;
            right: -20px;
            top: -30px;
            background-color: #fff;
            border: #ebebeb solid 1px;
            width: 40px;
            height: 40px;
            border-radius: 20px;
        }
        
        .login-input-content {
            margin-top: 20xp;
        }
        
        .login-input {
            overflow: hidden;
            margin: 0 0 20px 0;
        }
        
        .login-input label {
            float: left;
            width: 90px;
            padding-right: 10px;
            text-align: right;
            line-height: 35px;
            height: 35px;
            font-size: 14px;
        }
        
        .login-input input {
            float: left;
            line-height: 35px;
            height: 35px;
            width: 350px;
            border: #ebebeb 1px solid;
            text-indent: 5px;
        }
        
        .login-button {
            width: 50%;
            margin: 30px auto 0 auto;
            line-height: 40px;
            font-size: 14px;
            text-align: center;
            border: #ebebeb 1px solid;
        }
        
        .login-button a {
            display: block;
        }
        
        .login-bg {
            display: none;
            width: 100%;
            height: 100%;
            position: fixed;
            top: 0;
            left: 0;
            background-color: rgba(0, 0, 0, .3);
        }
    </style>
</head>

<body>
    <div class="login-header"><a id="link" href="javascript:;">點選,彈出登入框</a></div>
    <div id="login" class="login">
        <div id="title" class="login-title">登入會員
            <span><a id="closeBtn" href="javascript:;">關閉</a></span>
        </div>
        <div class="login-input-content">
            <div class="login-input">
                <label>使用者名稱：</label>
                <input type="text" placeholder="請輸入使用者名稱" name="info[username]">
            </div>
            <div class="login-input">
                <label>登入密碼:</label>
                <input type="password" placeholder="請輸入登入密碼" name="info[password]">
            </div>
            <div id="loginBtn" class="login-button">
                <a href="javascript:;" id="login-button-submit">登入會員</a>
            </div>
        </div>
    </div>
    <div id="bg" class="login-bg"></div>
    <script>
        var login = document.querySelector(".login");
        var mask = document.querySelector(".login-bg");
        var link = document.querySelector("#link");
        var closeBtn = document.querySelector("#closeBtn");
        var title = document.querySelector("#title");
        link.addEventListener("click", function() {
            login.style.display = "block";
            mask.style.display = "block";
        });

        closeBtn.addEventListener("click", function() {
            login.style.display = "none";
            mask.style.display = "none";
        });

        title.addEventListener("mousedown", function(e) {
            var x = e.pageX - login.offsetLeft;
            var y = e.pageY - login.offsetTop;
            console.log("x", x);
            console.log("y", y);
            document.addEventListener("mousemove", move);

            function move(e) {
                login.style.left = e.pageX - x + 'px';
                login.style.top = e.pageY - y + 'px';
            }
            document.addEventListener("mouseup", function(e) {
                document.removeEventListener("mousemove", move);
            });
        });
    </script>




</body>

</html>

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