前端特效（仿博客）
效果
蜘蛛网 + 点击向上飘不同颜色的爱心
<html lang="en">
<style>
.heart {
width: 10px;
height: 10px;
transform: rotate(45deg);
margin-top: 4px;
margin-left: 4px;
}
.heart::before {
position: absolute;
content: '';
display: block;
width: 10px;
height: 10px;
border-radius: 50%;
left: -5px;
}
.heart::after {
position: absolute;
content: '';
display: block;
width: 10px;
height: 10px;
border-radius: 50%;
top: -5px;
}
.bg_red {
background-color: red;
}
.bg_red::before {
background-color: red;
}
.bg_red::after {
background-color: red;
}
.bg_yellow {
background-color: yellow;
}
.bg_yellow::before {
background-color: yellow;
}
.bg_yellow::after {
background-color: yellow;
}
.bg_orange {
background-color: orange;
}
.bg_orange::before {
background-color: orange;
}
.bg_orange::after {
background-color: orange;
}
.bg_orchid {
background-color: orchid;
}
.bg_orchid::before {
background-color: orchid;
}
.bg_orchid::after {
background-color: orchid;
}
.bg_lawngreen {
background-color: lawngreen;
}
.bg_lawngreen::before {
background-color: lawngreen;
}
.bg_lawngreen::after {
background-color: lawngreen;
}
.bg_blue {
background-color: rgb(45, 125, 216);
}
.bg_blue::before {
background-color: rgb(45, 125, 216);
}
.bg_blue::after {
background-color: rgb(45, 125, 216);
}
.bg_aqua {
background-color: aqua;
}
.bg_aqua::before {
background-color: aqua;
}
.bg_aqua::after {
background-color: aqua;
}
.bg_mediums {
background-color: mediumslateblue;
}
.bg_mediums::before {
background-color: mediumslateblue;
}
.bg_mediums::after {
background-color: mediumslateblue;
}
.bg_wheat {
background-color: rgb(240, 125, 215);
}
.bg_wheat::before {
background-color: rgb(240, 125, 215);
}
.bg_wheat::after {
background-color: rgb(240, 125, 215);
}
style>
<head>
<meta charset="utf-8">
head>
<body style="height: 400px;">
<script src="https://cdn.bootcss.com/jquery/3.3.1/jquery.min.js">script>
<script type="text/javascript">
/* 鼠标点击特效 - 7Core.CN 小爱心 */
var a_idx = 0;
jQuery(document).ready(function($) {
$("body").click(function(e) {
var arr = new Array("bg_red", "bg_yellow", "bg_orange", "bg_orchid",
"bg_lawngreen", "bg_blue", "bg_aqua", "bg_mediums", "bg_wheat");
var $i = $('+ arr[a_idx] + '" />');
a_idx = (a_idx + 1) % arr.length;
var x = e.pageX,
y = e.pageY;
$i.css({
"z-index": 100000000,
"top": y - 20,
"left": x,
"position": "absolute",
"font-weight": "bold",
"color": "#ff6651"
});
$("body").append($i);
$i.animate({
"top": y - 180,
"opacity": 0
}, 1500, function() {
$i.remove();
});
});
});
/***
特效二 蜘蛛网
*/
!
function() {
function n(n, e, t) {
return n.getAttribute(e) || t
}
function e(n) {
return document.getElementsByTagName(n)
}
function t() {
var t = e("script"),
o = t.length,
i = t[o - 1];
return {
l: o,
z: n(i, "zIndex", -1),
o: n(i, "opacity", .5),
c: n(i, "color", "0,0,0"),
n: n(i, "count", 99)
}
}
function o() {
a = m.width = window.innerWidth || document.documentElement.clientWidth || document.body.clientWidth,
c = m.height = window.innerHeight || document.documentElement.clientHeight || document.body.clientHeight
}
function i() {
r.clearRect(0, 0, a, c);
var n, e, t, o, m, l;
s.forEach(function(i, x) {
for (i.x += i.xa, i.y += i.ya, i.xa *= i.x > a || i.x < 0 ? -1 : 1, i.ya *= i.y > c || i.y < 0 ? -1 : 1, r.fillRect(i.x - .5, i.y - .5, 1, 1), e = x + 1; e < u.length; e++) n = u[e],
null !== n.x && null !== n.y && (o = i.x - n.x, m = i.y - n.y, l = o * o + m * m, l < n.max && (n === y && l >= n.max / 2 && (i.x -= .03 * o, i.y -= .03 * m), t = (n.max - l) / n.max, r.beginPath(), r.lineWidth = t / 2, r.strokeStyle = "rgba(" + d.c + "," + (t + .2) + ")", r.moveTo(i.x, i.y), r.lineTo(n.x, n.y), r.stroke()))
}),
x(i)
}
var a, c, u, m = document.createElement("canvas"),
d = t(),
l = "c_n" + d.l,
r = m.getContext("2d"),
x = window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || window.oRequestAnimationFrame || window.msRequestAnimationFrame ||
function(n) {
window.setTimeout(n, 1e3 / 45)
},
w = Math.random,
y = {
x: null,
y: null,
max: 2e4
};
m.id = l,
m.style.cssText = "position:fixed;top:0;left:0;z-index:" + d.z + ";opacity:" + d.o,
e("body")[0].appendChild(m),
o(),
window.onresize = o,
window.onmousemove = function(n) {
n = n || window.event,
y.x = n.clientX,
y.y = n.clientY
},
window.onmouseout = function() {
y.x = null,
y.y = null
};
for (var s = [], f = 0; d.n > f; f++) {
var h = w() * a,
g = w() * c,
v = 2 * w() - 1,
p = 2 * w() - 1;
s.push({
x: h,
y: g,
xa: v,
ya: p,
max: 6e3
})
}
u = s.concat([y]),
setTimeout(function() {
i()
},
100)
}();
script>
body>
html>