html星空效果，使⽤css实现星空效果！css实现星空效果
html, body {
height: 100%;
overflow: hidden;
}
body {
width: 100%;
height:100%;
background: #000;
background-size: 100%;
画表情包perspective: 500px;
坐以待毙
}
.stars {
position: absolute;
top: 50%;
left: 50%;
width: 4px;
height:4px;
-webkit-border-radius:50%;
-moz-border-radius:50%;
border-radius:50%;
animation: fly 2s linear infinite;
transform-style: prerve-3d;
}
.stars:before, .stars:after {
content: "";
position: absolute;
width: inherit;
height: inherit;
box-shadow: inherit;
}
推理悬疑电影.stars:before {
transform: translateZ(-300px);
opacity: .6;
}
.stars:after {
transform: translateZ(-600px);
opacity: .4;
}
@keyframes fly {
from {
transform: translateZ(0px);
opacity: .6;
}
彭泓森
to {
transform: translateZ(300px);
opacity: 1;
绳子编法大全
}
比尾巴ppt}
var w = document.documentElement.clientWidth1.2;
var h = document.documentElement.clientHeight1.2;
var star = ElementsByClassName("stars")[0];
var n = 1000;
//随机函数
function randomNum(m, n) {
return Math.floor(Math.random() * (n - m + 1) + m);
}
var str = "";
for (var i = 0; i < n; i++) {
厝垵var numX = randomNum(-w, w);
var numY = randomNum(-h, h);
var color = "rgb(" + randomNum(0, 255) + "," + randomNum(0, 255) + "," + randomNum(0, 255) + ")"; str += numX +"px"+" " + numY+"px"+" "+ color+",";
甘蔗怎么挑
}
str = str.slice(0,-1);
star.style.boxShadow = str;
