<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Login</title>
<link rel="stylesheet" href="css/style.css" />
</head>
<body>
<div class="box">
<h2>Login</h2>
<form action="">
<div class="item">
<input type="text" required >
<label for="">UserName</label>
</div>
<div class="item">
<input type="password" required >
<label for="">Password</label>
</div>
<button class="btn">Login
<span></span>
<span></span>
<span></span>
<span></span>
</button>
</form>
</body>
</html>
*{
padding: 0;
margin: 0;
}
input,button{
border: none;
background: transparent;
outline: none;
}
body{
height: 100vh;
justify-content: center;
align-items: center;
display: flex;
background: linear-gradient(#141e30,#243b55);
}
.box{
margin: 0px auto;
width: 400px;
height: 350px;
background: rgba(0,0,0,.5);
box-shadow: 0 10px 25px 0 rgba(0,0,0,.5);
padding-top: 40px;
border-radius: 6px;
}
h2{
text-align: center;
}
.item{
height: 45px;
width: 85%;
margin: 0 auto;
border-bottom: 1px solid #333;
margin-bottom: 30px;
position: relative;
}
item,input{
width: 100%;
height: 100%;
color: #333333;
padding-top: 20px;
box-sizing: border-box;
}
item,label{
position: absolute;
left: 0px;
top: 10px;
color: aquamarine;
transition: all .4s ease;
}
.item input:focus +label,.item input:valid +label{
top: 0px;
font-size: 13px;
color: brown;
}
.btn{
padding:10px 20px;
margin-left: 30px;
margin-top: 30px;
color: #7FFFD4;
overflow: hidden;
position: relative;
text-transform: uppercase;
}
.btn>span{
position: absolute;
}
.btn:hover{
border-radius: 5px;
border: 2px solid #03E9F4;
box-shadow: 0 0 5px 0 #03E9F4,
0 0 25px 0 #03E9F4,
0 0 50px 0 #03E9F4,
0 0 100px 0 #03E9F4;
}
.btn>span:nth-child(1){
width: 100%;
height: 2px;
background: -webkit-linear-gradient(left,transparent,#03e9f4);
left: -100%;
top: 0px;
animation: line 1s linear infinite;
}
@keyframes line{
50%,100%{
left: 100%;
}
}
.btn>span:nth-child(2){
width: 2px;
height: 100%;
background: -webkit-linear-gradient(top,transparent,#03e9f4);
right: 0px;
top: -100%;
animation: line2 1s 0.25s linear infinite;
}
@keyframes line2{
50%,100%{
top: 100%;
}
}
.btn>span:nth-child(3){
width: 100%;
height: 2px;
background: -webkit-linear-gradient(left,transparent,#03e9f4);
left: 100%;
bottom: 0px;
animation: line3 1s 0.5s linear infinite;
}
@keyframes line3{
50%,100%{
left: -100%;
}
}
.btn>span:nth-child(4){
width: 2px;
height: 100%;
background: -webkit-linear-gradient(bottom,transparent,#03e9f4);
left: 0px;
top: 100%;
animation: line4 1s 0.75s linear infinite;
}
@keyframes line4{
50%,100%{
top: -100%;
}
}