js制作带有遮罩弹出层实现登录小窗口

<!DOCTYPE html>
	<html>
	<head>
	<title>js制作带有遮罩弹出层实现登录小窗口</title>
	<script>

	function shogMinLogin(){
	var mini_login = document.getElementsByClassName("mini_login")[0];
	var cover = document.getElementsByClassName("cover")[0];
	mini_login.style.display = "block";
	cover.style.display = "block";

	mini_login.style.left = (document.body.scrollWidth - mini_login.scrollWidth) / 2 + "px";
	mini_login.style.top = (document.body.scrollHeight - mini_login.scrollHeight) / 2 + "px";
	}


	</script>
	<style>

	/* 弹出样式 */
	.mini_login{
	display:none;
	position:absolute;
	z-index:2;
	background:white;
	}
	.mini_login .item{
	width:320px;
	margin:0 auto;
	height:48px;
	line-height:48px;
	padding:0 20px;
	}
	/* 登录窗第一行*/
	.mini_login .firstLine{
	color:#666;
	background:#f7f7f7;
	font-size:18px;
	font-weight:bold;
	cursor:move;
	}
	.mini_login .item .login_close{
	display:inline-block;
	float:right;
	cursor:pointer;
	}

	.mini_login .item label{
	font-size:14px;
	margin-right:15px;
	}
	.mini_login .item input{
	display:inline-block;
	height:60%;
	width:70%;
	}
	/* 登录按钮 */
	.mini_login .item a.btn_login{
	display:block;
	margin:10px 10% 0;
	height:30px;
	line-height:30px;
	width:80%;
	background:#4490F7;
	color:white;
	font-size:16px;
	font-weight:bold;
	text-align:center;
	}
	/* 遮罩层样式 */
	.cover{
	display:none;
	width:100%;
	height:100%;
	position:absolute;
	top:0;
	left:0;
	z-index:1;
	background-color:#000;
	opacity:0.3;
	}
	</style>
	</head>
	<body onload="shogMinLogin();">

	<!-- 弹出登录小窗口 -->
	<div class="mini_login" id="mini_login">
	<!-- 表单 -->
	<form action="" method="post">
	<div class="item firstLine" id="firstLine">
	<span class="login_title">我要登录</span>
	<span class="login_close" id="close_minilogin">X</span>
	</div>
	<div class="item">
	<label>用户</label>
	<input type="text" name="uname" />
	</div>
	<div class="item">
	<label>密码</label>
	<input type="password" name="upwd" />
	</div>
	<div class="item">
	<a href="javascript:void(0)" class="btn_login" onclick="">登录</a>
	</div>
	</form>
	</div>
	<!-- 遮罩层 -->
	<div class="cover"></div>

	</body>
	</html>

posted @ 2016-12-26 19:25 linuxsec 阅读(159) 评论(0) 收藏举报

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js制作带有遮罩弹出层实现登录小窗口

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