html+css实现纸张撕裂404错误页面动画效果，演示Ripped 404 Page Animation (bokequ.com)
1、html页面代码
<html> <head> <meta charset="UTF-8"> <title>Ripped 404 Page Animation</title> <meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover"> <link rel="stylesheet" type="text/css" href="css/style.css"> <link rel='stylesheet' href='css/css2.css'> </head> <body> <main> <div> <svg class="paper" viewBox="0 0 300 300" width="300px" height="300px" role="img" aria-label="A piece of paper torn in half"> <g class="paper__outline" fill="none" stroke="hsl(0,10%,10%)" stroke-width="8" stroke-linecap="round" stroke-linejoin="round" transform="translate(61,4)"> <g class="paper__top" transform="translate(0,25)"> <polygon class="paper__shadow" fill="hsl(0,10%,70%)" stroke="none" points="0 148,0 0,137 0,187 50,187 148,155 138,124 148,93 138,62 148,31 138" transform="translate(-12,12)" /> <rect class="paper__tear-fill" fill="hsl(0,0%,100%)" stroke="none" x="0" y="137" width="0" height="23px" /> <polygon class="paper__fill" fill="hsl(0,0%,100%)" stroke="none" points="0 148,0 0,137 0,187 50,187 148,155 138,124 148,93 138,62 148,31 138" /> <polygon class="paper__shadow" fill="hsl(0,10%,70%)" stroke="none" points="137 0,132 55,187 50,142 45" /> <polyline points="137 0,142 45,187 50" /> <polyline points="0 148,0 0,137 0,187 50,187 148" /> <g class="paper__lines" stroke="hsl(0,10%,70%)"> <polyline points="22 88,165 88" /> <polyline points="22 110,165 110" /> <polyline points="22 132,165 132" /> </g> <polyline class="paper__tear" points="0 148,31 138,62 148,93 138,124 148,155 138,187 148" stroke-dasharray="198 198" stroke-dashoffset="-198" /> </g> <g class="paper__bottom" transform="translate(0,25)"> <polygon class="paper__shadow" fill="hsl(0,10%,70%)" stroke="none" points="0 148,31 138,62 148,93 138,124 148,155 138,187 148,187 242,0 242" transform="translate(-12,12)" /> <polygon class="paper__fill" fill="hsl(0,0%,100%)" stroke="none" points="0 148,31 140,62 148,93 138,124 148,155 138,187 148,187 242,0 242" /> <polyline points="187 148,187 242,0 242,0 148" /> <g class="paper__lines" stroke="hsl(0,10%,70%)"> <polyline points="22 154,165 154" /> <polyline points="22 176,165 176" /> <polyline points="22 198,94 198" /> </g> <polyline class="paper__tear" points="0 148,31 138,62 148,93 138,124 148,155 138,187 148" stroke-dasharray="198 198" stroke-dashoffset="-198" /> </g> </g> </svg> </div> <div> <h1>404</h1> <p>您要查找的页面可能已被移动，或者根被删除。</p> <a class="btn-link" href="http://www.bokequ.com/">返回首页</a> </div> </main> </body> </html>
2、css样式
* {
border: 0;
box-sizing: border-box;
margin: 0;
padding: 0;
}
:root {
--hue: 223;
--bg: hsl(var(--hue),10%,90%);
--fg: hsl(var(--hue),10%,10%);
--primary: hsl(var(--hue),90%,45%);
--primary-down: hsl(var(--hue),90%,65%);
--trans-dur: 0.3s;
font-size: calc(16px + (24 - 16) * (100vw - 320px) / (2560 - 320));
}
body {
background-color: var(--bg);
color: var(--fg);
display: flex;
font: 1em/1.5 Nunito, sans-serif;
height: 100vh;
transition:
background-color var(--trans-dur),
color var(--trans-dur);
}
main {
display: grid;
grid-gap: 3em 1.5em;
margin: auto;
max-width: 40em;
padding: 3em 0;
text-align: center;
width: calc(100% - 3em);
}
h1 {
font-size: 3em;
line-height: 1;
margin: 0 0 1.5rem;
}
p {
margin: 0 0 1.5em;
}
.btn-link {
background: var(--primary);
border-radius: 1.5em;
display: inline-block;
outline: transparent;
padding: 0.75em 1.5em;
text-align: center;
text-decoration: none;
transition: background-color 0.15s linear;
}
.btn-link,
.btn-link:visited {
color: hsl(0,0%,100%);
}
.btn-link:focus-visible,
.btn-link:hover {
background: var(--primary-down);
}
.btn-link:hover {
text-decoration: none;
}
.paper {
display: block;
margin: auto;
overflow: visible;
width: 100%;
max-width: 224px;
height: auto;
}
.paper__fill {
fill: hsl(0,0%,100%);
}
.paper__outline,
.paper__lines {
transition: stroke var(--trans-dur);
}
.paper__outline {
stroke: hsl(var(--hue),10%,10%);
}
.paper__lines {
stroke: hsl(var(--hue),10%,70%);
}
.paper__shadow {
fill: hsl(var(--hue),10%,70%);
transition: fill var(--trans-dur);
}
.paper__top,
.paper__bottom,
.paper__tear,
.paper__tear-fill {
animation: paperTop 1.25s cubic-bezier(0.77,0,0.18,1);
}
.paper__top,
.paper__bottom {
transform-origin: 0 148px;
transition: transform var(--trans-dur) cubic-bezier(0.77,0,0.18,1);
}
.paper__top {
transform: translate(0,8px);
}
.paper__bottom {
animation-name: paperBottom;
transform: translate(0,42px);
}
.paper__tear,
.paper__tear-fill {
animation-timing-function: cubic-bezier(0.32,0,0.67,0);
}
.paper__tear {
animation-name: paperTear;
stroke-dashoffset: 0;
}
.paper__tear-fill {
animation-name: paperTearFill;
}
.paper__outline:hover .paper__top,
.paper__outline:hover .paper__bottom {
transform: translate(0,25px);
}
/* Dark theme */
@media (prefers-color-scheme: dark) {
:root {
--bg: hsl(var(--hue),10%,25%);
--fg: hsl(var(--hue),10%,90%);
}
.paper__shadow:first-child {
fill: hsl(var(--hue),10%,15%);
}
}
/* Beyond mobile */
@media (min-width: 768px) {
main {
grid-template-columns: 1fr 2fr;
align-items: center;
text-align: left;
}
.paper {
max-width: 300px;
}
}
/* Animations */
@keyframes paperTop {
from,
40% {
animation-timing-function: cubic-bezier(0.32,0,0.67,0);
transform: translate(0,25px) rotate(0);
transform-origin: 61px 148px;
}
70% {
animation-timing-function: cubic-bezier(0.33,1,0.67,1.5);
transform: translate(0,25px) rotate(-5deg);
transform-origin: 61px 148px;
}
to {
transform: translate(0,8px) rotate(0);
transform-origin: 0 148px;
}
}
@keyframes paperBottom {
from,
40% {
animation-timing-function: cubic-bezier(0.32,0,0.67,0);
transform: translate(0,25px) rotate(0);
transform-origin: 61px 148px;
}
70% {
animation-timing-function: cubic-bezier(0.33,1,0.67,1.5);
transform: translate(0,25px) rotate(5deg);
transform-origin: 61px 148px;
}
to {
transform: translate(0,42px) rotate(0);
transform-origin: 0 148px;
}
}
@keyframes paperTear {
from,
40% {
stroke-dashoffset: -198;
}
70%,
to {
stroke-dashoffset: 0;
}
}
@keyframes paperTearFill {
from,
40% {
width: 187px;
}
70%,
to {
width: 0;
}
}
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