<style>
[href="#example"]{
position: relative;
display: inline-block;
padding: 25px 30px;
margin: 40px 0;
color: #03f4bc!important;
text-decoration: none;
overflow: hidden;
text-transform: uppercase;
letter-spacing: 4px;
}
[href="#example"]:hover{
background: #03f4bc;
color: #050000!important;
box-shadow: 0 0 5px #03f4bc,
0 0 25px #03f4bc,
0 0 50px #03f4bc,
0 0 200px #03f4bc;
-webkit-box-reflect: below 1px linear-gradient(transparent, #0005);
}
[href="#example"] span{
position: absolute;
display: block;
}
[href="#example"] span:nth-child(1){
top: 0;
left: 0;
width: 100%;
height: 2px;
background: linear-gradient(90deg,transparent,#03f4bc);
animation: animate1 1s linear infinite;
}
@keyframes animate1{
0%{
left:-100%;
}
50%,100%{
left:100%;
}
}
[href="#example"] span:nth-child(2){
top: -100%;
right: 0;
width: 2px;
height: 100%;
background: linear-gradient(180deg,transparent,#03f4bc);
animation: animate2 1s linear infinite;
animation-delay: 0.25s;
}
@keyframes animate2{
0%{
top:-100%;
}
50%,100%{
top:100%;
}
}
[href="#example"] span:nth-child(3){
bottom: 0;
right: 0;
width: 100%;
height: 2px;
background: linear-gradient(270deg,transparent,#03f4bc);
animation: animate3 1s linear infinite;
animation-delay: 0.5s;
}
@keyframes animate3{
0%{
right:-100%;
}
50%,100%{
right:100%;
}
}
[href="#example"] span:nth-child(4){
bottom: -100%;
left: 0;
width: 2px;
height: 100%;
background: linear-gradient(360deg,transparent,#03f4bc);
animation: animate4 1s linear infinite;
animation-delay: 0.75s;
}
@keyframes animate4{
0%{
bottom:-100%;
}
50%,100%{
bottom:100%;
}
}
</style>