html
<body style="background-color: #000;display: flex;justify-content: center;align-items: center;width: 100vw;height: 100vh;">
<div class="light">
<div></div>
<div></div>
<div></div>
<div></div>
我的我的祖国
</div>
</body>
css
<style>
.light {
position: relative;
padding: 25px 30px;
color: #03e9f4;
font-size: 24px;
text-transform: uppercase;
transition: 0.5s;
letter-spacing: 4px;
cursor: pointer;
overflow: hidden;
width: 200px;
}
.light:hover {
background-color: #03e9f4;
color: #050801;
box-shadow: 0 0 5px #03e9f4,
0 0 25px #03e9f4,
0 0 50px #03e9f4,
0 0 200px #03e9f4;
}
.light div {
position: absolute;
}
.light div:nth-child(1) {
width: 100%;
height: 2px;
top: 0;
left: -100%;
background: linear-gradient(to right, transparent, #03e9f4);
animation: animate1 1s linear infinite;
}
.light div:nth-child(2) {
width: 2px;
height: 100%;
top: -100%;
right: 0;
background: linear-gradient(to bottom, transparent, #03e9f4);
animation: animate2 1s linear infinite;
animation-delay: 0.25s;
}
.light div:nth-child(3) {
width: 100%;
height: 2px;
bottom: 0;
right: -100%;
background: linear-gradient(to left, transparent, #03e9f4);
animation: animate3 1s linear infinite;
animation-delay: 0.5s;
}
.light div:nth-child(4) {
width: 2px;
height: 100%;
bottom: -100%;
left: 0;
background: linear-gradient(to top, transparent, #03e9f4);
animation: animate4 1s linear infinite;
animation-delay: 0.75s;
}
@keyframes animate1 {
0% {
left: -100%;
}
50%,
100% {
left: 100%;
}
}
@keyframes animate2 {
0% {
top: -100%;
}
50%,
100% {
top: 100%;
}
}
@keyframes animate3 {
0% {
right: -100%;
}
50%,
100% {
right: 100%;
}
}
@keyframes animate4 {
0% {
bottom: -100%;
}
50%,
100% {
bottom: 100%;
}
}
</style>