200行Html5+CSS3+JS代码实现动态圣诞树
2021-12-20 17:56
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一、前言
- 最近CSDN的热榜出现了很多用Python、C/C++等编程语言实现的圣诞树,发现很少用前端的,这篇文章用前端三大杀手Html5、CSS、Js来实现动态圣诞树。
二、圣诞树
效果展示:
备注:
- 整体圣诞树分为3个部分,书的主干、粒子特效、树上的卡片
- 树上的卡片(重点):每一张卡片上都有一个名字,代表圣诞树的叶子,后面可以根据自己需求更改,比如全部改成喜欢人的名字,在JS代码的第五行内更改内容
- 树的动态旋转通过js实现、主干是html5、样式CSS
三、编码实现
CSS代码:
/********************************************* * RESET *********************************************/ html{color:#000;background:#222222;} a{cursor:pointer;} html,body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,code,form,fieldset,legend,input,textarea,p,blockquote,th,td{margin:0;padding:0;} table{border-collapse:collapse;border-spacing:0;} fieldset,img{border:0;} address,caption,cite,code,dfn,em,strong,th,var{font-style:normal;font-weight:normal;} li{list-style:none;} caption,th{text-align:left;} /* h1,h2,h3,h4,h5,h6{font-size:100%;} */ q:before,q:after{content:'';} abbr,acronym {border:0;font-variant:normal;} sup {vertical-align:text-top;} sub {vertical-align:text-bottom;} input,textarea,select{font-family:inherit;font-size:inherit;font-weight:inherit;outline-style:none;outline-width:0pt;} legend{color:#000;} a:focus,object,h1,h2,h3,h4,h5,h6{-moz-outline-style: none; border:0px;} /*input[type="Submit"]{cursor:pointer;}*/ strong {font-weight: bold;} /********************************************* * GLOBAL *********************************************/ body, html { overflow: hidden; font-family: Helvetica, Arial, sans-serif; color: #fff; font-size: 11px; width: 100%; height: 100%; background: #b72424; background: -moz-radial-gradient(center, ellipse cover, #b72424 0%, #492727 100%); background 20000 : -webkit-gradient(radial, center center, 0px, center center, 100%, color-stop(0%,#b72424), color-stop(100%,#492727)); background: -webkit-radial-gradient(center, ellipse cover, #b72424 0%,#492727 100%); background: radial-gradient(center, ellipse cover, #b72424 0%,#492727 100%); } @keyframes spin { 0% { transform: rotateY( 0deg ); } 100% { transform: rotateY( 360deg ); } } body { perspective: 3000px; perspective-origin: 0 20%; } .tree { margin: 0 auto; position: relative; animation: spin 18s infinite linear; transform-origin: 50% 0; transform-style: preserve-3d; } .tree * { position: absolute; transform-origin: 0 0; }
Html代码:
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="description" content="A Christmas tree built out of form elements." /> <meta name="author" content="Hakim El Hattab" /> <meta http-equiv="X-UA-Compatible" content="chrome=1"> <title>DOM Tree</title> <link href="css/domtree.css" rel="stylesheet" media="screen" /> <link href='https://fonts.googleapis.com/css?family=Armata' rel='stylesheet' type='text/css'> </head> <body> <div class="tree"></div> <script src="js/domtree.js"></script> <!-- Third party scripts and sharing UI --> <p class="project-title">DOM Tree</p> <div class="credits"> <a href="https://blog.csdn.net/qq_53673551?spm=1000.2115.3001.5343">知心宝贝</a> <a href="https://twitter.com/hakimel">文章代码参考@hakimel</a> </div> <style type="text/css" media="screen"> .project-title { position: absolute; left: 25px; bottom: 20px; font-size: 16px; color: #fff; } .credits { position: absolute; right: 20px; bottom: 25px; font-size: 15px; z-index: 20; color: #fff; vertical-align: middle; } .credits * + * { margin-left: 15px; } .credits a { padding: 8px 10px; color: rgba(255,255,255,0.7); border: 2px solid rgba(255,255,255,0.7); text-decoration: none; } .credits a:hover { border-color: #fff; color: #fff; } @media screen and (max-width: 1040px) { .project-title { display: none; } .credits { width: 100%; left: 0; right: auto; bottom: 0; padding: 30px 0; background: #b72424; text-align: center; } .credits a { display: inline-block; margin-top: 7px; margin-bottom: 7px; } } </style> <script> var _gaq = [['_setAccount', 'UA-15240703-1'], ['_trackPageview']]; (function(d, t) { var g = d.createElement(t), s = d.getElementsByTagName(t)[0]; g.async = true; g.src = ('https:' == location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; s.parentNode.insertBefore(g, s); })(document, 'script'); </script> </body> </html>
JS代码:
const width = 500; const height = 600; const quantity = 150; const types = [ 'text', 'select', 'progress', 'meter', 'button', 'radio', 'checkbox' ]; const greetings = [ '知心宝贝','知心宝贝','Merry Christmas','Merry Christmas','Merry Christmas','Merry Christmas','知心宝贝','12月25','知心宝贝','Merry Christmas','Happy Holidays', ' 知心宝贝','12月25','知心宝贝','Merry Christmas','知心宝贝','Merry Christmas','知心宝贝' ]; let tree = document.querySelector( '.tree' ), treeRotation = 0; tree.style.width = width + 'px'; tree.style.height = height + 'px'; window.addEventListener( 'resize', resize, false ); // The tree for( var i = 0; i < quantity; i++ ) { let element = null, type = types[ Math.floor( Math.random() * types.length ) ], greeting = greetings[ Math.floor( Math.random() * greetings.length ) ]; let x = width/2, y = Math.round( Math.random() * height ); let rx = 0, ry = Math.random() * 360, rz = -Math.random() * 15; let elemenWidth = 5 + ( ( y / height ) * width / 2 ), elemenHeight = 26; switch( type ) { case 'button': element = document.createElement( 'button' ); element.textContent = greeting; element.style.width = elemenWidth + 'px'; element.style.height = elemenHeight + 'px'; break; case 'progress': element = document.createElement( 'progress' ); element.style.width = elemenWidth + 'px'; element.style.height = elemenHeight + 'px'; if( Math.random() > 0.5 ) { element.setAttribute( 'max', '100' ); element.setAttribute( 'value', Math.round( Math.random() * 100 ) ); } break; case 'select': element = document.createElement( 'select' ); element.setAttribute( 'selected', greeting ); element.innerHTML = '<option>' + greetings.join( '</option><option>' ) + '</option>'; element.style.width = elemenWidth + 'px'; element.style.height = elemenHeight + 'px'; break; case 'meter': element = document.createElement( 'meter' ); element.setAttribute( 'min', '0' ); element.setAttribute( 'max', '100' ); element.setAttribute( 'value', Math.round( Math.random() * 100 ) ); element.style.width = elemenWidth + 'px'; element.style.height = elemenHeight + 'px'; break; case 'text': default: element = document.createElement( 'input' ); element.setAttribute( 'type', 'text' ); element.setAttribute( 'value', greeting ); element.style.width = elemenWidth + 'px'; element.style.height = elemenHeight + 'px'; } element.style.transform = `translate3d(${x}px, ${y}px, 0px) rotateX(${rx}deg) rotateY(${ry}deg) rotateZ(${rz}deg)`; tree.appendChild( element ); } // Let it snow for( var i = 0; i < 200; i++ ) { let element = document.createElement( 'input' ); element.setAttribute( 'type', 'radio' ); let spread = window.innerWidth/2; let x = Math.round( Math.random() * spread ) - ( spread / 4 ), y = Math.round( Math.random() * height ), z = Math.round( Math.random() * spread ) - ( spread / 2 ); let rx = 0, ry = Math.random() * 360, rz = 0; if( Math.random() > 0.5 ) element.setAttribute( 'checked', '' ); element.style.transform = `translate3d(${x}px, ${y}px, ${z}px) rotateX(${rx}deg) rotateY(${ry}deg) rotateZ(${rz}deg)`; tree.appendChild( element ); } function resize() { tree.style.top = ( ( window.innerHeight - height - 100 ) / 2 ) + 'px'; } resize();
附录:
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