position: absolute;
left: 50%;
margin-left: -300px;
top: 50px;
z-index: 1;
border-radius: 100%;
background-color: #e8f2f6;
background-image: -webkit-linear-gradient(top, #dee8f1, #f6f9fa 60px);
background-image: linear-gradient(to bottom, #dee8f1, #f6f9fa 60px);
.mound:after {
content: '';
display: block;
width: 28px;
height: 6px;
position: absolute;
left: 50%;
margin-left: -150px;
top: 68px;
z-index: 2;
background: #dd4040;
border-radius: 100%;
-webkit-transform: rotate(-15deg);
transform: rotate(-15deg);
box-shadow: -56px 12px 0 1px #dd4040, -126px 6px 0 2px #dd4040, -196px 24px 0 3px #dd4040;
.mound_text {
-webkit-transform: rotate(6deg);
transform: rotate(6deg);
.mound_spade {
display: block;
width: 35px;
height: 30px;
position: absolute;
right: 50%;
top: 42%;
margin-right: -250px;
z-index: 0;
-webkit-transform: rotate(35deg);
transform: rotate(35deg);
background: #dd4040;
.mound_spade:before, .mound_spade:after {
content: '';
display: block;
position: absolute;
.mound_spade:before {
width: 40%;
height: 30px;
bottom: 98%;
left: 50%;
margin-left: -20%;
background: #dd4040;
.mound_spade:after {
width: 100%;
height: 30px;
top: -55px;
left: 0%;
box-sizing: border-box;
border: 10px solid #dd4040;
border-radius: 4px 4px 20px 20px;
</style>
</head>
<body translate="no">
<div class="content">
<canvas class="snow" id="snow" width="1440" height="706"></canvas>
<div class="main-text">
<h1>天啊。
那页失踪了。</h1>
<div class="main-text-a"><a href="http://www.eceshu.com/">< 返回首页</a></div>
</div>
<div class="ground">
<div class="mound">
<div class="mound_text">404 </div>
<div class="mound_spade"></div>
</div>
</div>
</div>
<script>
(function() {
function ready(fn) {
if (document.readyState != 'loading'){
fn();
} else {
document.addEventListener('DOMContentLoaded', fn);
}
}
function makeSnow(el) {
var ctx = el.getContext('2d');
var width = 0;
var height = 0;
var particles = [];
var Particle = function() {
this.x = this.y = this.dx = this.dy = 0;
this.reset();
}
Particle.prototype.reset = function() {
this.y = Math.random() * height;
this.x = Math.random() * width;
this.dx = (Math.random() * 1) - 0.5;
this.dy = (Math.random() * 0.5) + 0.5;
}
function createParticles(count) {
if (count != particles.length) {
particles = [];
for (var i = 0; i < count; i++) {
particles.push(new Particle());
}
}
}
function onResize() {
width = window.innerWidth;
height = window.innerHeight;
el.width = width;
el.height = height;
createParticles((width * height) / 10000);
}
function updateParticles() {
ctx.clearRect(0, 0, width, height);
ctx.fillStyle = '#f6f9fa';
particles.forEach(function(particle) {
particle.y += particle.dy;
particle.x += particle.dx;
if (particle.y > height) {
particle.y = 0;
}
if (particle.x > width) {
particle.reset();
particle.y = 0;
}
ctx.beginPath();
ctx.arc(particle.x, particle.y, 5, 0, Math.PI * 2, false);
ctx.fill();
});
window.requestAnimationFrame(updateParticles);
}
onResize();
updateParticles();
}
ready(function() {
var canvas = document.getElementById('snow');
makeSnow(canvas);
});
})();
</script>
</body></html>