代碼(將代碼添加至頁腳html板塊):

 1 <!--代碼放置於</body>上方-->
 2 
 3 <script>
 4 
 5 !function(){
 6 
 7 function n(n,e,t){
 8 
 9 return n.getAttribute(e)||t
10 
11 }
12 
13 function e(n){
14 
15 return document.getElementsByTagName(n)
16 
17 }
18 
19 function t(){
20 
21 var
 
 t=e("script"),o=t.length,i=t[o-1];
22 
23 return{
24 
25 l:o,z:n(i,"zIndex",-1),o:n(i,"opacity",.5),c:n(i,"color","0,0,0"),n:n(i,"count",99)
26 
27 }
28 
29 }
30 
31 function o(){
32 
33 a=m.width=window.innerWidth||document.documentElement.clientWidth||document.body.clientWidth,
34 
35 c
 
=m.height=window.innerHeight||document.documentElement.clientHeight||document.body.clientHeight
36 
37 }
38 
39 function i(){
40 
41 r.clearRect(0,0,a,c);
42 
43 var n,e,t,o,m,l;
44 
45 s.forEach(function(i,x){
46 
47 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],
48 
49 null!==n.x&&null!==n.y&&(o=i.x-n.x,m=i.y-n.y,
50 
51 l=o*o+m*m,l<n.max&&(n===y&&l>=n.max/2&&(i.x-=.03*o,i.y-=.03*m),
52 
53 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()))
54 
55 }),
56 
57 x(i)
58 
59 }
60 
61 var a,c,u,m=document.createElement("canvas"),
62 
63 d=t(),l="c_n"+d.l,r=m.getContext("2d"),
64 
65 x=window.requestAnimationFrame||window.webkitRequestAnimationFrame||window.mozRequestAnimationFrame||window.oRequestAnimationFrame||window.msRequestAnimationFrame||
66 
67 function(n){
68 
69 window.setTimeout(n,1e3/45)
70 
71 },
72 
73 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,
74 
75 window.onmousemove=function(n){
76 
77 n=n||window.event,y.x=n.clientX,y.y=n.clientY
78 
79 },
80 
81 window.onmouseout=function(){
82 
83 y.x=null,y.y=null
84 
85 };
86 
87 for(var s=[],f=0;d.n>f;f++){
88 
89 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})
90 
91 }
92 
93 u=s.concat([y]),
94 
95 setTimeout(function(){i()},100)
96 
97 }();
98 
99 </script>

博客樣式(動態背景線條跟隨鼠標移動)