马上临近圣诞，昨天刷到一个抖音一个作者展示了他制作的圣诞树，虽然很简陋但还是有点意思的，今天分享一下源代码。
HTML+JS版
演示地址：点击查看3D圣诞树
演示效果图：（效果是动态的，截图不是）
代码：
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Frameset//EN" "/TR/html4/frameset.dtd">
<html>
<head>
<title>html5写的3D逼真圣诞树效果</title>
<meta charset="utf-8" >
<style>
html, body { width: 100%; height: 100%; margin: 0; padding: 0; border: 0; }
p { margin: 0; padding: 0; border: 0; }
.nav {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 27px;
background-color: white;
color: black;
text-align: center;
line-height: 25px;
}
a { color: black; text-decoration: none; border-bottom: 1px dashed black; }
a:hover { border-bottom: 1px solid red; }
.previous { float: left; margin-left: 10px; }
.next { float: right; margin-right: 10px; }
.green { color: green; }
.red { color: red; }
textarea { width: 100%; height: 100%; border: 0; padding: 0; margin: 0; padding-bottom: 20px; }
.block-outer { float: left; width: 22%; height: 100%; padding: 5px; border-left: 1px solid black; margin: 30px 3px 3px 3px; }
.block-inner { height: 68%; }
.one { border: 0; }
</style>
</head>
<body marginwidth="0" marginheight="0">
<canvas id="c" height="356" width="446">
<script>
var collapsed = true;
function toggle() {
var fs = top.document.getElementsByTagName('frameset')[0];
var f = fs.getElementsByTagName('frame');
if (collapsed) {
fs.rows = '250px,*';
// enable resizing of frames in firefox/opera
fs.noResize = false;
f[0].noResize = false;
f[1].noResize = false;
} else {
fs.rows = '30px,*';
// disable resizing of frames in firefox/opera
fs.noResize = true;
f[0].noResize = true;
f[1].noResize = true;
}
collapsed = !collapsed;
}
</script>
<script>
var b = document.body;
var c = document.getElementsByTagName('canvas')[0];
var a = c.getContext('2d');
document.body.clientWidth; // fix bug in chrome.
</script>
<script>
// start of submission //
M=Math;Q=M.random;J=[];U=16;T=M.sin;E=M.sqrt;for(O=k=0;x=z=j=i=k<200;)with(M[k]=k?c.cloneNode(0):c){width=height=k?32:W=446;with(getContext('2d'))if(k>10|!k)for(font='60px Impact',V='rgba(';I=i*U,fillStyle=k?k==13?V+'205,205,215,.15)':V+(147+I)+','+(k%2?128+I:0)+','+I+',.5)':'#cca',i<7;)beginPath(fill(arc(U-i/3,24-i/2,k==13?4-(i++)/2:8-i++,0,M.PI*2,1)));else for(;x=T(i),y=Q()*2-1,D=x*x+y*y,B=E(D-x/.9-1.5*y+1),R=67*(B+1)*(L=k/9+.8)>>1,i++<W;)if(D<1)beginPath(strokeStyle=V+R+','+(R+B*L>>0)+',40,.1)'),moveTo(U+x*8,U+y*8),lineTo(U+x*U,U+y*U),stroke();for(y=H=k+E(k++)*25,R=Q()*W;P=3,j<H;)J[O++]=[x+=T(R)*P+Q()*6-3,y+=Q()*U-8,z+=T(R-11)*P+Q()*6-3,j/H*20+((j+=U)>H&Q()>.8?Q(P=9)*4:0)>>1]}setInterval(function G(m,l){A=T(D-11);if(l)return(m[2]-l[2])*A+(l[0]-m[0])*T(D);a.clearRect(0,0,W,W);J.sort(G);for(i=0;L=J[i++];a.drawImage(M[L[3]+1],207+L[0]*A+L[2]*T(D)>>0,L[1]>>1)){if(i==2e3)a.fillText('Merry Christmas!',U,345);if(!(i%7))a.drawImage(M[13],((157*(i*i)+T(D*5+i*i)*5)%W)>>0,((113*i+(D*i)/60)%(290+i/99))>>0);}D+=.02},1)
// end of submission //
</script>
</body>
</html>HTML和CSS版：
这个版本是纯HTML和CSS制作的，当然就缺少了一点3D特效，不过增加了背景音乐和滚动祝福文字，也是很好看的。
演示地址：圣诞树演示页面
HTML代码：
doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="Author" content="只会切图的前端">
<title>写知者祝你圣诞快乐</title>
<link rel="stylesheet" href="index.css"/>
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
</head>
<body>
<p class="word">Merry Christmas</p>
<div class="tree">
<div class="star">
<div class="star-in"></div>
</div>
<!--树叶-->
<div class="leaf-box">
<div class="leaf">
<div class="edge"></div>
<div class="edge right"></div>
</div>
<div class="leaf">
<div class="edge"></div>
<div class="edge right"></div>
</div>
<div class="leaf">
<div class="edge"></div>
<div class="edge right"></div>
</div>
<div class="leaf">
<div class="edge"></div>
<div class="edge right"></div>
</div>
<div class="leaf">
<div class="edge"></div>
<div class="edge right"></div>
</div>
</div>
<!--树干-->
<div class="trunk"></div>
<!--彩色的球-->
<div class="ball-box">
<div class="ball b1"></div>
<div class="ball b2"></div>
<div class="ball b3"></div>
<div class="ball b4"></div>
<div class="ball b5"></div>
<div class="ball b6"></div>
<div class="ball b7"></div>
<div class="ball b8"></div>
<div class="ball b9"></div>
</div>
<!--闪烁--->
<div class="sparkle">
<span>✦</span>
<span>✦</span>
<span>✦</span>
<span>✦</span>
<span>✦</span>
<span>✦</span>
</div>
<div class="blink">
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
</div>
</div>
<br> <br>
<div style="text-align:center; display:none;">
<iframe frameborder="no" border="0" marginwidth="0" marginheight="0" width=298 height=52 src="//music.163.com/outchain/player?type=2&id=3061282&auto=1&height=32"></iframe>
</div>
<marquee><span style="font-weight: bolder;font-size: 20px;color: white;" class="word">I miss you! Wish your Christmas festival happiness! At first we have a reunion soon! </span></marquee>
</body>
</html>CSS代码：
html,body {
width: 100%;
height: 100%;
}
* {
margin: 0;
padding: 0;
}
body {
background-color: #020024;
}
.word {
font-size: 22px;
text-align: center;
color: gold;
padding-top: 50px;
letter-spacing: 5px;
text-shadow: 2px 4px 9px rgba(255,255,255,0.7);
}
/*圣诞树外层div*/
.tree {
width: 200px;
height: 300px;
margin: 80px auto 0 auto;
position: relative;
/*相对定位*/
/* border: 1px solid #fff; */
}
.star {
width: 50px;
height: 50px;
position:absolute;
background-color:#fff;
border-radius:50%;
top:-25px;
z-index:1000;
left:50%;
transform:translateX(-50%);
animation:starLight 1.5s ease infinite alternate;
}
.star-in{
position:absolute;
left:50%;
top:50%;
border-right:100px solid transparent;
border-bottom:70px solid gold;
border-left:100px solid transparent;
transform:translateX(-50%) translateY(-50%) rotate(35deg)
scale(0.14);
}
.star-in:before{
border-bottom: 80px solid gold;
border-left: 30px solid transparent;
border-right: 30px solid transparent;
position:absolute;
top:-45px;
left:-65px;
content:'';
transform:rotate(-35deg);
}
.star-in:after{
border-bottom: 70px solid gold;
border-left: 100px solid transparent;
border-right: 100px solid transparent;
position:absolute;
top:3px;
left:-105px;
content:'';
transform:rotate(-70deg);
}
@keyframes starLight{
0% {
background: radial-gradient(ellipse at center,
gold 0%, rgba(255, 240, 158, 0.5) 42%,
rgba(255, 242, 173, 0.2) 58%,
rgba(255, 255, 255, 0.1) 100%);
}
25% {
background: radial-gradient(ellipse at center, gold 0%,
rgba(255, 240, 158, 0.5) 40%,
rgba(255, 242, 173, 0.2) 60%,
rgba(255, 255, 255, 0.1) 100%);
}
50% {
background: radial-gradient(ellipse at center,
gold 0%, rgba(255, 240, 158, 0.5) 38%,
rgba(255, 242, 173, 0.2) 62%,
rgba(255, 255, 255, 0.1) 100%);
}
75% {
background: radial-gradient(ellipse at center,
gold 0%, rgba(255, 240, 158, 0.5) 36%,
rgba(255, 242, 173, 0.2) 64%,
rgba(255, 255, 255, 0.1) 100%);
}
100% {
background: radial-gradient(ellipse at center,
gold 0%, rgba(255, 240, 158, 0.5) 34%,
rgba(255, 242, 173, 0.2) 66%,
rgba(255, 255, 255, 0.1) 100%);
}
}
.leaf{
position:absolute;
left:50%;
top:3%;
margin-left:-30px;
background-color:rgba(14,110,14);
width:60px;
height:60px;
border-radius:0 10px 35px 10px ;
transform:rotate(45deg);
box-shadow:2px 7px 2px rgba(43,43,43,0.2);
}
.edge{
position:absolute;
left:0;
bottom:0;
background:rgba(14,110,14);
width:25px;
height:30px;
border-radius:0 10px 35px 10px;
transform:translateY(50%) translateX(0);
}
.edge.right{
position:absolute;
left: unset;
bottom: unset;
top: 0;
right: 0;
background:rgba(14,110,14);
width:25px;
height:30px;
border-radius:0 10px 35px 10px;
transform:translateY(0) translateX(50%);
}
/*双数修改背景色*/
.leaf:nth-child(even){
background-color: #0f880f;
}
.leaf:nth-child(even) .edge{
background-color: #0f880f;
}
/*最上面*/
.leaf:nth-child(1){
z-index:100;
transform: rotate(45deg) scale(0.8) ;
}
/*第二*/
.leaf:nth-child(2) {
z-index: 99;
top: 15%;
transform: rotate(45deg) scale(1.3) ;
}
.leaf:nth-child(3) {
z-index: 98;
top: 28%;
transform: rotate(45deg) scale(1.6) ;
}
.leaf:nth-child(4) {
z-index: 97;
top: 41%;
transform: rotate(45deg) scale(1.9) ;
}
.leaf:nth-child(5) {
z-index: 96;
top: 54%;
transform: rotate(45deg) scale(2.2) ;
}
.trunk{
width:25px;
height:45px;
border-radius:0 0 3px 3px;
position:absolute;
left:50%;
transform:translateX(-50%);
bottom:20px;
z-index:1;
box-shadow:0 0 10px 5px rgb(19,19,19);
background:linear-gradient(0deg,#6d411b 0%,#5a341d 64%);
}
.ball{
width:20px;
height:20px;
background:#f00;
box-shadow:-1px -1px 6px inset #600,1px 1px 8px inset #ffc9c9;
border-radius:50%;
z-index:101;
position:absolute;
}
.b1{
left: 25%;
top: 30%;
}
.b2 {
left: 35%;
top: 50%;
}
.b3 {
left: 65%;
top: 20%;
}
.b4 {
left: 45%;
top: 22%;
}
.b5 {
left: 40%;
top: 72%;
}
.b6 {
left: 60%;
top: 52%;
}
.b7 {
left: 50%;
top: 62%;
}
.b8 {
left: 80%;
top: 42%;
}
.b9 {
left: 10%;
top: 62%;
}
.b4,.b5,.b6{
background:#ececec;
box-shadow:-1px -1px 6px inset #615f5f,1px 1px 8px inset #fff;
}
.b7,.b8,.b9{
background:gold;
box-shadow: -1px -1px 6px inset #3a3101, 1px 1px 8px inset #fff;
}
.sparkle span{
display:block;
position:absolute;
font-size:20px;
z-index:101;
color:#fff;
animation:lights 1.5s ease infinite alternate;
}
/*闪烁动画*/
@keyframes lights{
0%,100%{
transform:scale(1);
}
50%{
transform:scale(1.5);
}
}
.sparkle span:nth-child(1) {
left: 30%;
top: 40%;
}
.sparkle span:nth-child(2) {
left: 40%;
top: 27%;
font-size: 15px;
}
.sparkle span:nth-child(3) {
left: 50%;
top: 57%;
font-size: 12px;
}
.sparkle span:nth-child(4) {
left: 70%;
top: 67%;
font-size: 14px;
}
.sparkle span:nth-child(5) {
left: 74%;
top: 13%;
font-size: 16px;
}
.blink div{
width:3px;
height:3px;
background:#fff;
z-index:101;
position:absolute;
border-radius:50%;
animation:blink 1.5s ease infinite alternate;
}
.blink div:nth-child(2) {
left: 34%;
top: 13%;
transform: scale(1.2);
}
.blink div:nth-child(3) {
left: 54%;
top: 43%;
transform: scale(0.6);
}
.blink div:nth-child(4) {
left: 64%;
top: 33%;
transform: scale(1.4);
}
.blink div:nth-child(5) {
left: 34%;
top: 63%;
transform: scale(1.8);
}
.blink div:nth-child(6) {
left: 14%;
top: 76%;
transform: scale(1.5);
}
@keyframes blink {
0%{
box-shadow:0 0 0 0 #fff;
}
25% {
box-shadow: 0 0 1px 1px #fff;
}
50% {
box-shadow: 0 0 2px 2px #fff;
}
75% {
box-shadow: 0 0 3px 3px #fff;
}
100% {
box-shadow: 0 0 4px 4px #fff;
}
}