CSS3实现发光边框特效运⾏效果：
html
<!-- This element is not visible. The DOM is generated by JavaScript -->
<div class="root" >
<div>
<div class="side left"></div>
<div class="side top"></div>
<div class="side right"></div>
<div class="side bottom"></div>
</div>
</div>
CSS
body {
margin: 0;
width: 100vw;
height: 100vh;
background: #010326;
}
.root {
--glow_width: 2px;
--animation_length: 2s;
--delay_factor: 2;
position: absolute;
left: 50%;
top: 50%;
width: 300px;
height: 300px;
transform: translate(-50%, -50%) rotate(45deg);
/*  Uncomment the line below to see how this system is set up  */
/*  border: 1px dashed red; */
overflow: hidden;
}
.side {
position: absolute;
top: 0;
left: 0;
}
.side.left,
.side.right {
width: var(--glow_width);
height: 0;
background: linear-gradient(to bottom, transparent, #c03225, transparent);
animation: heightAnim var(--animation_length) linear infinite,
hider calc(var(--delay_factor) * var(--animation_length))
var(--animation_length) infinite;
}
.p,
.side.bottom {
width: 100%;
height: var(--glow_width);
background: linear-gradient(to left, transparent, #c03225, transparent);
animation: widthAnim var(--animation_length) 0s linear infinite,
hider calc(var(--delay_factor) * var(--animation_length))
var(--animation_length) infinite;
}
.
side.right {
left: auto;
right: 0;
height: 0;
animation-delay: calc(var(--animation_length) / 2);
animation-direction: normal, reverse;
}
.side.bottom {
top: auto;
bottom: 0;
width: 0;
animation-delay: calc(var(--animation_length) / 2);
animation-direction: normal, reverse;
}
@keyframes heightAnim {
0% {
height: 0px;
}
50% {
height: 300px;
transform: initial;
}
100% {
transform: translate(0, 300px);
}
}
@keyframes widthAnim {
0% {
width: 0px;
}
50% {
width: 300px;
transform: initial;
}
100% {
transform: translate(300px, 0px);
}
}
@keyframes hider {
0%,
50% {
opacity: 0;
}
51%,
100% {
opacity: 1;
}
}
js
代码运行js特效let template = `<div class="root" >
<div>
<div class="side left"></div>
<div class="side top"></div>
<div class="side right"></div>
<div class="side bottom"></div>
</div>
</div>`
let segments = 9
for(let i = -segments; i < segments; i++){
document.body.innerHTML += place("{{ value }}", 90/segments * i + "deg")
}
// document.body.innerHTML += place("{{ value }}", 90/segments * 0 + "deg")
以上就是CSS3 实现发光边框特效的详细内容，更多关于CSS3 发光边框特效的资料请关注其它相关⽂章！

版权声明：本站内容均来自互联网，仅供演示用，请勿用于商业和其他非法用途。如果侵犯了您的权益请与我们联系QQ:729038198，我们将在24小时内删除。