動畫效果：http://hovertree.com/texiao/html5/6.htm
代碼如下：
<!doctype html>
<html>
<head>
<title>我愛你！ - 何問起</title>
<meta charset="utf-8" />
<style>
a{color:blue}
.rosehovertree{width:567px;height:567px;margin :0px auto}
.hvtholder{width:789px;margin :10px auto}
</style>
</head>
<body>
<div class="hvtholder">
<a href="http://hovertree.com">首頁</a>
<a href="http://hovertree.com/hvtart/bjae/a2ll5rdj.htm">原文</a>
<a href="http://hovertree.com/texiao/">特效</a>
<br />送你一朵玫瑰花！
</div>
<div class="rosehovertree">
<canvas id="chovertree"></canvas>
</div>
<script>
var b = document.body;
var c = document.getElementById('chove'+'rtree');
var a = c.getContext('2d');
//document.body.clientWidth; hovertree.com
</script>
<script>
with(m=Math)C=cos,S=sin,P=pow,R=random;c.width=c.height=f=500;h=-250;function p(a,b,c){if(c>60)return[S(a*7)*(13+5/(.2+P(b*4,4)))-S(b)*50,b*f+50,625+C(a*7)*(13+5/(.2+P(b*4,4)))+b*400,a*1-b/2,a];A=a*2-1;B=b*2-1;if(A*A+B*B<1){if(c>37){n=(j=c&1)?6:4;o=.5/(a+.01)+C(b*125)*3-a*300;w=b*h;return[o*C(n)+w*S(n)+j*610-390,o*S(n)-w*C(n)+550-j*350,1180+C(B+A)*99-j*300,.4-a*.1+P(1-B*B,-h*6)*.15-a*b*.4+C(a+b)/5+P(C((o*(a+1)+(B>0?w:-w))/25),30)*.1*(1-B*B),o/1e3+.7-o*w*3e-6]}if(c>32){c=c*1.16-.15;o=a*45-20;w=b*b*h;z=o*S(c)+w*C(c)+620;return[o*C(c)-w*S(c),28+C(B*.5)*99-b*b*b*60-z/2-h,z,(b*b*.3+P((1-(A*A)),7)*.15+.3)*b,b*.7]}o=A*(2-b)*(80-c*2);w=99-C(A)*120-C(b)*(-h-c*4.9)+C(P(1-b,7))*50+c*2;z=o*S(c)+w*C(c)+700;return[o*C(c)-w*S(c),B*99-C(P(b, 7))*50-c/3-z/1.35+450,z,(1-b/1.2)*.9+a*.1, P((1-b),20)/4+.05]}}setInterval('for(i=0;i<1e4;i++)if(s=p(R(),R(),i%46/.74)){z=s[2];x=~~(s[0]*f/z-h);y=~~(s[1]*f/z-h);if(!m[q=y*f+x]|m[q]>z)m[q]=z,a.fillStyle="rgb("+~(s[3]*h)+","+~(s[4]*h)+","+~(s[3]*s[3]*-80)+")",a.fillRect(x,y,1,1)}',0)
</script>
</body>
</html>