Hôm này mình chia sẻ code Trang trí Ngày Lễ Tình Nhân - Valentine's Day cho blogger với Javascript.
DEMO
Chèn code này trước thẻ đóng </head>
<style type='text/css'> body {background: #ff449d url(https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjfe1rSpNv5GhVwN8_8GeLVd2MmDV9HD3pUC7bQNYAlVdC9NFz9l6tnp6DlPEWYkuq4Oc2nyl9kO5-m0IwEkM29Yv3YVVf8Kyjp94DUH-mz__-lcnTOYA1WKm4l51tap8PE8LgYbXMKD3Ai/s0/738322z0khilo37b.gif) repeat scroll top left; } </style> <script type='text/javascript'>//<![CDATA[ var fallObjects=new Array();function newObject(url,height,width){fallObjects[fallObjects.length]=new Array(url,height,width);} ///////////// Thông số ////////////// var numObjs=20, waft=50, fallSpeed=10, wind=0; newObject("https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhg5sTEsgR7vQbpAXGRmgf2IqJl1wEX19WPAvkYbrPzUlW9CvZ__3KGzm8weXse1TgATTfu43QER_hVZoFH223wUcoiZczLfZLOpQ7obYRqHpGiQO9ptsC-L1V8GXrjvyn7IlF_l0UMxsF9/s1600/heart9.gif",16,15); newObject("https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhg5sTEsgR7vQbpAXGRmgf2IqJl1wEX19WPAvkYbrPzUlW9CvZ__3KGzm8weXse1TgATTfu43QER_hVZoFH223wUcoiZczLfZLOpQ7obYRqHpGiQO9ptsC-L1V8GXrjvyn7IlF_l0UMxsF9/s1600/heart9.gif",16,15); ////////////////////////////////////////////// function winSize(){winWidth=(moz)?window.innerWidth-180:document.body.clientWidth-180;winHeight=(moz)?window.innerHeight+500:document.body.clientHeight+500;} function winOfy(){winOffset=(moz)?window.pageYOffset:document.body.scrollTop;} function fallObject(num,vari,nu){ objects[num]=new Array(parseInt(Math.random()*(winWidth-waft)),-30,(parseInt(Math.random()*waft))*((Math.random()>0.5)?1:-1),0.02+Math.random()/20,0,1+parseInt(Math.random()*fallSpeed),vari,fallObjects[vari][1],fallObjects[vari][2]); if(nu==1){document.write('<img id="fO'+i+'" style="position:fixed;" src="'+fallObjects[vari][0]+'">'); } } function fall(){ for(i=0;i<numObjs;i++){ var fallingObject=document.getElementById('fO'+i); if((objects[i][1]>(winHeight-(objects[i][5]+objects[i][7])))||(objects[i][0]>(winWidth-(objects[i][2]+objects[i][8])))){fallObject(i,objects[i][6],0);} objects[i][0]+=wind;objects[i][1]+=objects[i][5];objects[i][4]+=objects[i][3]; with(fallingObject.style){ top=objects[i][1]+winOffset+'px';left=objects[i][0]+(objects[i][2]*Math.cos(objects[i][4]))+'px';} } setTimeout("fall()",31); } var objects=new Array(),winOffset=0,winHeight,winWidth,togvis,moz=(document.getElementById&&!document.all)?1:0;winSize(); for (i=0;i<numObjs;i++){fallObject(i,parseInt(Math.random()*fallObjects.length),1);} fall(); //]]></script>
Lưu lại và thưởng thức.