动态背景登录

前端动态背景登录

效果演示
在这里插入图片描述
完整代码
首先我们要导入jquery.js包

html代码

<!doctype html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> 
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>动态背景登录</title>
<link rel="stylesheet" type="text/css" href="css/styles.css">
</head>
<body>
<div class="kePublic">
<!--效果html开始-->
<div class="htmleaf-container"><div class="wrapper"><div class="container"><h1>Welcome</h1><form class="form"><input type="text" placeholder="Username"><input type="password" placeholder="Password"><button type="submit" id="login-button">Login</button></form></div><ul class="bg-bubbles"><li></li><li></li><li></li><li></li><li></li><li></li><li></li><li></li><li></li><li></li></ul></div>
</div>
<script src="js/jquery.js" type="text/javascript"></script>
<script>
$('#login-button').click(function (event) {event.preventDefault();$('form').fadeOut(500);$('.wrapper').addClass('form-success');
});
</script></body>
</html>

css代码

@charset "utf-8";* {margin: 0;padding: 0;-webkit-text-size-adjust: none
}h1{margin-top: 100px;
}h2,
h3,
h4,
h5,
h6 {font-size: 12px;font-weight: normal
}body>div {margin: 0 auto
}div {text-align: left
}a img {border: 0
}body {color: #333;text-align: center;font: 12px "微软雅黑";
}ul,
ol,
li {list-style-type: none;vertical-align: 0
}.kePublic {background: #FFF;padding: 0px;font-weight: 300;
}body ::-webkit-input-placeholder {/* WebKit browsers */font-family: 'Source Sans Pro', sans-serif;color: white;font-weight: 300;
}body :-moz-placeholder {/* Mozilla Firefox 4 to 18 */font-family: 'Source Sans Pro', sans-serif;color: white;opacity: 1;font-weight: 300;
}body ::-moz-placeholder {/* Mozilla Firefox 19+ */font-family: 'Source Sans Pro', sans-serif;color: white;opacity: 1;font-weight: 300;
}body :-ms-input-placeholder {/* Internet Explorer 10+ */font-family: 'Source Sans Pro', sans-serif;color: white;font-weight: 300;
}.wrapper {background: #50a3a2;background: -webkit-linear-gradient(top left, #50a3a2 0%, #53e3a6 100%);background: linear-gradient(to bottom right, #50a3a2 0%, #53e3a6 100%);opacity: 0.8;position: relative;left: 0;width: 100%;height: 900px;overflow: hidden;}.wrapper.form-success .container h1 {-webkit-transform: translateY(85px);-ms-transform: translateY(85px);transform: translateY(85px);
}.container {max-width: 600px;margin: 0 auto;padding: 80px 0;height: 400px;text-align: center;
}.container h1 {font-size: 40px;-webkit-transition-duration: 1s;transition-duration: 1s;-webkit-transition-timing-function: ease-in-put;transition-timing-function: ease-in-put;font-weight: 200;color: #fff;
}form {padding: 20px 0;position: relative;z-index: 2;
}form input {-webkit-appearance: none;-moz-appearance: none;appearance: none;outline: 0;border: 1px solid rgba(255, 255, 255, 0.4);background-color: rgba(255, 255, 255, 0.2);width: 220px;border-radius: 3px;padding: 10px 15px;margin: 0 auto 10px auto;display: block;text-align: center;font-size: 18px;color: white;-webkit-transition-duration: 0.25s;transition-duration: 0.25s;font-weight: 300;
}form input:hover {background-color: rgba(255, 255, 255, 0.4);
}form input:focus {background-color: white;width: 300px;color: #53e3a6;
}form button {-webkit-appearance: none;-moz-appearance: none;appearance: none;outline: 0;background-color: white;border: 0;padding: 10px 15px;color: #53e3a6;border-radius: 3px;width: 250px;cursor: pointer;font-size: 18px;-webkit-transition-duration: 0.25s;transition-duration: 0.25s;
}form button:hover {background-color: #f5f7f9;
}.bg-bubbles {position: absolute;top: 0;left: 0;width: 100%;height: 100%;z-index: 1;
}.bg-bubbles li {position: absolute;list-style: none;display: block;width: 40px;height: 40px;background-color: rgba(255, 255, 255, 0.15);bottom: -160px;-webkit-animation: square 25s infinite;animation: square 25s infinite;-webkit-transition-timing-function: linear;transition-timing-function: linear;
}.bg-bubbles li:nth-child(1) {left: 10%;
}.bg-bubbles li:nth-child(2) {left: 20%;width: 80px;height: 80px;-webkit-animation-delay: 2s;animation-delay: 2s;-webkit-animation-duration: 17s;animation-duration: 17s;
}.bg-bubbles li:nth-child(3) {left: 25%;-webkit-animation-delay: 4s;animation-delay: 4s;
}.bg-bubbles li:nth-child(4) {left: 40%;width: 60px;height: 60px;-webkit-animation-duration: 22s;animation-duration: 22s;background-color: rgba(255, 255, 255, 0.25);
}.bg-bubbles li:nth-child(5) {left: 70%;
}.bg-bubbles li:nth-child(6) {left: 80%;width: 120px;height: 120px;-webkit-animation-delay: 3s;animation-delay: 3s;background-color: rgba(255, 255, 255, 0.2);
}.bg-bubbles li:nth-child(7) {left: 32%;width: 160px;height: 160px;-webkit-animation-delay: 7s;animation-delay: 7s;
}.bg-bubbles li:nth-child(8) {left: 55%;width: 20px;height: 20px;-webkit-animation-delay: 15s;animation-delay: 15s;-webkit-animation-duration: 40s;animation-duration: 40s;
}.bg-bubbles li:nth-child(9) {left: 25%;width: 10px;height: 10px;-webkit-animation-delay: 2s;animation-delay: 2s;-webkit-animation-duration: 40s;animation-duration: 40s;background-color: rgba(255, 255, 255, 0.3);
}.bg-bubbles li:nth-child(10) {left: 90%;width: 160px;height: 160px;-webkit-animation-delay: 11s;animation-delay: 11s;
}@-webkit-keyframes square {0% {-webkit-transform: translateY(0);transform: translateY(0);}100% {-webkit-transform: translateY(-700px) rotate(600deg);transform: translateY(-700px) rotate(600deg);}
}@keyframes square {0% {-webkit-transform: translateY(0);transform: translateY(0);}100% {-webkit-transform: translateY(-700px) rotate(600deg);transform: translateY(-700px) rotate(600deg);}
}