效果:
html部分
<div class="body">
<a href="#">Button</a>
<a href="#">Button</a>
<a href="#">Button</a>
</div>
css部分
.body{
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
background: #000;
min-height: 100vh;
}
.body a{
position: relative;
padding: 10px 30px;
margin: 40px 0;
color: #21ebff;
text-decoration: none;
font-size: 20px;
text-transform: uppercase;
transition: 0.5s;
overflow: hidden;
}
.body a:hover{
background: #21ebff;
color: #111;
box-shadow: 0 0 50px #21ebff;
transition-delay: 0.5s;
}
.body a:nth-child(1){
filter: hue-rotate(115deg);
}
.body a:nth-child(3){
filter: hue-rotate(270deg);
}
.body a::before{
content: "";
position: absolute;
top: 0;
left: 0;
width: 10px;
height: 10px;
border-top: 1px solid #21ebff;
border-left: 1px solid #21ebff;
transition: 0.5s;
transition-delay: 0.5s;
}
.body a:hover:before{
width: 100%;
height: 100%;
transition-delay: 0s;
}
.body a::after{
content: "";
position: absolute;
bottom: 0;
right: 0;
width: 10px;
height: 10px;
border-bottom: 1px solid #21ebff;
border-right: 1px solid #21ebff;
transition: 0.5s;
transition-delay: 0.5s;
}
.body a:hover:after{
width: 100%;
height: 100%;
transition-delay: 0s;
}