示例
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport"
content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<style>
.login-header {
width: 100%;
text-align: center;
height: 30px;
font-size: 24px;
line-height: 30px;
}
ul, li, ol, dl, dt, dd, div, p, span, h1, h2, h3, h4, h5, h6, a {
padding: 0px;
margin: 0px;
}
.login {
width: 512px;
position: absolute;
border: #ebebeb solid 1px ;
height: 280px;
left: 50%;
right: 50%;
background-color: #fff;
box-shadow: 0px 0px 20px #ddd;
z-index: 9999;
margin-left: -250px;
margin-top: 140px;
display: none;
}
.login-title {
width: 100%;
margin: 10px 0px 0px 0px;
text-align: center;
line-height: 40px;
height: 40px;
font-size: 18px;
position: relative;
cursor: move;
/*文本能不能被选择*/
-moz-user-select: none; /*火狐*/
-webkit-user-select: none; /*webkit浏览器*/
-ms-user-select: none; /*IE10*/
-khtml-user-select: none; /*早期浏览器*/
user-select: none;
}
.login-input-content {
margin-top: 20px;
}
.login-button {
width: 50%;
margin: 30px auto 0px auto;
line-height: 40px;
font-size: 14px;
border: #ebebeb 1px solid;
text-align: center;
}
.login-bg {
width: 100%;
height: 100%;
position: fixed;
top: 0px;
left: 0px;
background: #000000;
filter: alpha(opacity=30);
-moz-opacity: 0.3;
-khtml-opacity: 0.3;
opacity: 0.3;
display: none;
}
a {
text-decoration: none;
color: #000000;
}
.login-button a {
display: block;
}
.login-input input.list-input {
float: left;
line-height: 35px;
height: 35px;
width: 350px;
border: #ebebeb 1px solid;
text-indent: 5px;
}
.login-input {
overflow: hidden;
margin: 0px 0px 20px 0px;
}
.login-input label {
float: left;
width: 90px;
padding-right: 10px;
text-align: right;
line-height: 35px;
height: 35px;
font-size: 14px;
}
.login-title span {
position: absolute;
font-size: 12px;
right: -20px;
top: -30px;
background: #ffffff;
border: #ebebeb solid 1px;
width: 40px;
height: 40px;
border-radius: 20px;
}
</style>
</head>
<body>
<div class="login-header"><a href="javascript:void(0)" id="link">点击，弹出登陆对话框</a></div>
<div class="login" id="login">
<div id="title" class="login-title">登录会员
<span><a id="closeBtn" href="javascript:void(0);" class="close-login">关闭</a></span>
</div>
<div class="login-input-content">
<div class="login-input">
<label>用户名：</label>
<input type="text" placeholder="请输入用户名" name="info[username]" id="username" class="list-input">
</div>
<div class="login-input">
<label>登录密码：</label>
<input type="password" placeholder="请输入登录密码" name="info[password]" id="password" class="list-input">
</div>
</div>
<div id="loginBtn" class="login-button"><a href="javascript:void(0);" id="login-button-submit">登录会员</a></div>
</div><!--登录框-->
<div id="bg" class="login-bg"></div><!--遮挡层-->
</div>
<script src="common.js"></script>
<script>
//获取超链接,注册点击事件,显示登录框和遮挡层
my$("link").onclick=function () {
my$("login").style.display="block";
my$("bg").style.display="block";
};
//获取关闭,注册点击事件,隐藏登录框和遮挡层
my$("closeBtn").onclick = function () {
my$("login").style.display = "none";
my$("bg").style.display = "none";
};
// 按下鼠标，移动鼠标，移动登录框
my$("title").onmousedown=function (e) {
// 获取此时的可视区域的横坐标，此时登陆框距离左侧页面的横坐标
var spaceX=e.clientX-my$("login").offsetLeft;
var spaceY = e.clientY - my$("login").offsetTop;
// 移动事件
document.onmousemove=function (e) {
// 新的可视区域的横坐标-spaceX=====新的值——》登录框的left属性
var x = e.clientX - spaceX+250;
var y = e.clientY - spaceY-140;
my$("login").style.left = x + "px";
my$("login").style.top = y + "px";
};
};
document.onmouseup=function () {
document.onmousemove=null;//当鼠标抬起的时候,把鼠标移动事件干掉
};
</script>
</body>
</html>
