css实现彩色跳绳跳动动画效果代码
代码语言：html
所属分类：动画
代码描述：css实现彩色跳绳跳动动画效果代码
下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开
<!DOCTYPE html>
<html lang="en" >
<head>
<meta charset="UTF-8">
<style>
#btn--yp {
box-sizing: content-box;
position: fixed;
z-index: 9;
bottom: 1em;
right: 1em;
border: solid 1em transparent;
width: 4.625em;
height: 3.25em;
font: 16px/1.25 trebuchet ms, sans-serif;
text-indent: 200vw;
text-shadow: none;
filter: grayscale(1) drop-shadow(0 0 1px #e8e0e0);
transition: 0.5s;
white-space: nowrap;
}
#btn--yp:before {
box-sizing: inherit;
position: absolute;
left: 0;
bottom: 100%;
margin: 1em -0.5em;
padding: 0.5em;
width: 100%;
border-radius: 5px;
background: #e8e0e0;
color: #000;
text-align: center;
text-decoration: none;
text-indent: 0vw;
white-space: normal;
animation: float 1s ease-in-out infinite alternate;
content: attr(data-txt);
}
#btn--yp:hover, #btn--yp:focus {
outline: none;
filter: grayscale(0) drop-shadow(0 0 1px crimson);
}
@keyframes float {
to {
transform: translateY(0.75em);
}
}
body {
display: grid;
place-content: center;
overflow: hidden;
margin: 0;
height: 100vh;
background: #222;
}
.dot {
--k: calc(var(--j)/var(--n-rows));
--mi: calc(.5*(var(--n-cols) - 1));
--abs: max(var(--mi) - var(--i), var(--i) - var(--mi));
--y: calc((var(--mi) - var(--abs))*100%);
--hsl: calc(270 - var(--k)*360), 100%, 50%;
grid-area: 1/calc(var(--i) + 1);
padding: 5px;
border-radius: 50%;
background: radial-gradient(hsl(var(--hsl)), transparent);
mix-blend-mode: screen;
animation: y 4s cubic-bezier(0.57, 0, 0.43, 1) calc((var(--k) + .375*var(--i)/var(--n-cols) - 2)*4s) infinite alternate;
}
@keyframes y {
0%, 5% {
transform: translatey(calc(-1*var(--y)));
}
95%, 100% {
transform: translatey(var(--y));
}
}
</style>
</head>
<body style="--n-cols: 49; --n-rows: 12">
<style>.dot:nth-of-type(49n + 1) { --i: 0 }.dot:nth-of-type(49n + 2) { --i: 1 }.dot:nth-of-type(49n + 3) { --i: 2 }.dot:nth-of-type(49n + 4) { --i: 3 }.dot:nth-of-type(49n + 5) { --i: 4 }.dot:nth-of-type(49n + 6) { --i: 5 }.dot:nth-of-type(49n + 7) { --i: 6 }.dot:nth-of-type(49n + 8) { --i: 7 }.dot:nth-of-type(49n + 9) { --i: 8 }.dot:nth-of-type(49n + 10) { --i: 9 }.dot:nth-of-type(49n + 11) { --i: 10 }.dot:nth-of-type(49n + 12) { --i: 11 }.dot:nth-of-type(49n + 13) { --i: 12 }.dot:nth-of-type(49n + 14) { --i: 13 }.dot:nth-of-type(49n + 15) { --i: 14 }.dot:nth-of-type(49n + 16) { --i: 15 }.dot:nth-of-type(49n + 17) { --i: 16 }.dot:nth-of-type(49n + 18) { --i: 17 }.dot:nth-of-type(49n + 19) { --i: 18 }.dot:nth-of-type(49n + 20) { --i: 19 }.dot:nth-of-type(49n + 21) { --i: 20 }.dot:nth-of-type(49n + 22) { --i: 21 }.dot:nth-of-type(49n + 23) { --i: 22 }.dot:nth-of-type(49n + 24) { --i: 23 }.dot:nth-of-type(49n + 25) { --i: 24 }.dot:nth-of-type(49n + 26) { --i: 25 }.dot:nth-of-type(49n + 27) { --i: 26 }.dot:nth-of-type(49n + 28) { --i: 27 }.dot:nth-of-type(49n + 29) { --i: 28 }.dot:nth-of-type(49n + 30) { --i: 29 }.dot:nth-of-type(49n + 31) { --i: 30 }.dot:nth-of-type(49n + 32) { --i: 31 }.dot:nth-of-type(49n + 33) { --i: 32 }.dot:nth-of-type(49n + 34) { --i: 33 }.dot:nth-of-type(49n + 35) { --i: 34 }.dot:nth-of-type(49n + 36) { --i: 35 }.dot:nth-of-type(49n + 37) { --i: 36 }.dot:nth-of-type(49n + 38) { --i: 37 }.dot:nth-of-type(49n + 39) { --i: 38 }.dot:nth-of-type(49n + 40) { --i: 39 }.dot:nth-of-type(49n + 41) { --i: 40 }.dot:nth-of-type(49n + 42) { --i: 41 }.dot:nth-of-type(49n + 43) { --i: 42 }.dot:nth-of-type(49n + 44) { --i: 43 }.dot:nth-of-type(49n + 45) { --i: 44 }.dot:nth-of-type(49n + 46) { --i: 45 }.dot:nth-of-type(49n + 47) { --i: 46 }.dot:nth-of-type(49n + 48) { --i: 47 }.dot:nth-of-type(49n + 49) { --i: 48 }.dot:nth-of-type(n + 1) { --j: 0 }.dot:nth-of-type(n + 50) { --j: 1 }.dot:nth-of-type(n + 99) { --j: 2 }.dot:nth-of-type(n + 148) { --j: 3 }.dot:nth-of-type(n + 197) { --j: 4 }.dot:nth-of-type(n + 246) { --j: 5 }.dot:nth-of-type(n + 295) { --j: 6 }.dot:nth-of-type(n + 344) { --j: 7 }.dot:nth-of-type(n + 393) { --j: 8 }.dot:nth-of-type(n + 442) { --j: 9 }.dot:nth-of-type(n + 491) { --j: 10 }.dot:nth-of-type(n + 540) { --j: 11 }
</style>
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<div class=".........完整代码请登录后点击上方下载按钮下载查看
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