1.带有浮动占位符和灯光按钮的登录界面
先上效果：
代码如下：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
html {
height: 100%;
}
body {
margin:0;
padding:0;
font-family: sans-serif;
background: linear-gradient(#141e30, #243b55);
}
.login-box {
position: absolute;
top: 50%;
left: 50%;
width: 400px;
padding: 40px;
transform: translate(-50%, -50%);
background: rgba(0,0,0,.5);
box-sizing: border-box;
box-shadow: 0 15px 25px rgba(0,0,0,.6);
border-radius: 10px;
}
.login-box h2 {
margin: 0 0 30px;
padding: 0;
color: #fff;
text-align: center;
}
.login-box .user-box {
position: relative;
}
.login-box .user-box input {
width: 100%;
padding: 10px 0;
font-size: 16px;
color: #fff;
margin-bottom: 30px;
border: none;
border-bottom: 1px solid #fff;
outline: none;
background: transparent;
}
.login-box .user-box label {
position: absolute;
top:0;
left: 0;
padding: 10px 0;
font-size: 16px;
color: #fff;
pointer-events: none;
transition: .5s;
}
.login-box .user-box input:focus ~ label,
.login-box .user-box input:valid ~ label {
top: -20px;
left: 0;
color: #03e9f4;
font-size: 12px;
}
.login-box form a {
position: relative;
display: inline-block;
padding: 10px 20px;
color: #03e9f4;
font-size: 16px;
text-decoration: none;
text-transform: uppercase;
overflow: hidden;
transition: .5s;
margin-top: 40px;
letter-spacing: 4px
}
.login-box a:hover {
background: #03e9f4;
color: #fff;
border-radius: 5px;
box-shadow: 0 0 5px #03e9f4,
0 0 25px #03e9f4,
0 0 50px #03e9f4,
0 0 100px #03e9f4;
}
.login-box a span {
position: absolute;
display: block;
}
.login-box a span:nth-child(1) {
top: 0;
left: -100%;
width: 100%;
height: 2px;
background: linear-gradient(90deg, transparent, #03e9f4);
animation: btn-anim1 1s linear infinite;
}
@keyframes btn-anim1 {
0% {
left: -100%;
}
50%,100% {
left: 100%;
}
}
.login-box a span:nth-child(2) {
top: -100%;
right: 0;
width: 2px;
height: 100%;
background: linear-gradient(180deg, transparent, #03e9f4);
animation: btn-anim2 1s linear infinite;
animation-delay: .25s
}
@keyframes btn-anim2 {
0% {
top: -100%;
}
50%,100% {
top: 100%;
}
}
.login-box a span:nth-child(3) {
bottom: 0;
right: -100%;
width: 100%;
height: 2px;
background: linear-gradient(270deg, transparent, #03e9f4);
animation: btn-anim3 1s linear infinite;
animation-delay: .5s
}
@keyframes btn-anim3 {
0% {
right: -100%;
}
50%,100% {
right: 100%;
}
}
.login-box a span:nth-child(4) {
bottom: -100%;
left: 0;
width: 2px;
height: 100%;
background: linear-gradient(360deg, transparent, #03e9f4);
animation: btn-anim4 1s linear infinite;
animation-delay: .75s
}
@keyframes btn-anim4 {
0% {
bottom: -100%;
}
50%,100% {
bottom: 100%;
}
}
</style>
</head>
<body>
<div class="login-box">
<h2>Login</h2>
<form>
<div class="user-box">
<input type="text" name="" required="">
<label>Username</label>
</div>
<div class="user-box">
<input type="password" name="" required="">
<label>Password</label>
</div>
<a href="#">
<span></span>
<span></span>
<span></span>
<span></span>
Submit
</a>
</form>
</div>
</body>
</html>
2.跳跃的登录字符登陆界面
先上效果：
代码如下：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link rel="stylesheet" href="style.css" />
<title>Form Input Wave</title>
<style>
@import url('https://fonts.googleapis.com/css?family=Muli&display=swap');
* {
box-sizing: border-box;
}
body {
background-color: steelblue;
color: #fff;
font-family: 'Muli', sans-serif;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
height: 100vh;
overflow: hidden;
margin: 0;
}
.container {
background-color: rgba(0, 0, 0, 0.4);
padding: 20px 40px;
border-radius: 5px;
}
.container h1 {
text-align: center;
margin-bottom: 30px;
}
.container a {
text-decoration: none;
color: lightblue;
}
.btn {
cursor: pointer;
display: inline-block;
width: 100%;
background: lightblue;
padding: 15px;
font-family: inherit;
font-size: 16px;
border: 0;
border-radius: 5px;
}
.btn:focus {
outline: 0;
}
.btn:active {
transform: scale(0.98);
}
.text {
margin-top: 30px;
}
.form-control {
position: relative;
margin: 20px 0 40px;
width: 300px;
}
.form-control input {
background-color: transparent;
border: 0;
border-bottom: 2px #fff solid;
display: block;
width: 100%;
padding: 15px 0;
font-size: 18px;
color: #fff;
}
.form-control input:focus,
.form-control input:valid {
outline: 0;
border-bottom-color: lightblue;
}
.form-control label {
position: absolute;
top: 15px;
left: 0;
pointer-events: none;
}
.form-control label span {
display: inline-block;
font-size: 18px;
min-width: 5px;
transition: 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}
.form-control input:focus + label span,
.form-control input:valid + label span {
color: lightblue;
transform: translateY(-30px);
}
</style>
</head>
<body>
<div class="container">
<h1>Please Login</h1>
<form>
<div class="form-control">
<input type="text" required>
<label>Email</label>
<!-- <label>
<span style="transition-delay: 0ms">E</span>
<span style="transition-delay: 50ms">m</span>
<span style="transition-delay: 100ms">a</span>
<span style="transition-delay: 150ms">i</span>
<span style="transition-delay: 200ms">l</span>
</label> -->
</div>
<div class="form-control">
<input type="password" required>
<label>Password</label>
</div>
<button class="btn">Login</button>
<p class="text">Don't have an account? <a href="#">Register</a> </p>
</form>
</div>
<script>
const labels = document.querySelectorAll('.form-control label')
labels.forEach(label => {
label.innerHTML = label.innerText
.split('')
.map((letter, idx) => `<span style="transition-delay:${idx * 50}ms">${letter}</span>`)
.join('')
})
</script>
</body>
</html>