Muốn tạo cảnh tuyết rơi trên blog bạn làm như sau vào Bố cục-Thêm tiện ích-HTML/Javascript
Dán code sau vào rồi lưu lại
CODE 1:
Xem Demo ngay tại bài viết này, để thuận tiện bạn hãy xem ở chế độ tối.
<script>
//<![CDATA[
var snowStorm = null;
function SnowStorm() {
// --- PROPERTIES ---
this.flakesMax = 128; // Limit total amount of snow made (falling + sticking)
this.flakesMaxActive = 64; // Limit amount of snow falling at once (less = lower CPU use)
this.animationInterval = 33; // Theoretical "miliseconds per frame" measurement. 20 = fast + smooth, but high CPU use. 50 = more conservative, but slower
this.flakeBottom = null; // Integer for Y axis snow limit, 0 or null for "full-screen" snow effect
this.targetElement = null; // element which snow will be appended to (document body if null/undefined) - can be an element ID string, or a DOM node reference
this.followMouse = true; // Snow will change movement with the user's mouse
this.snowColor = '#fff'; // Don't eat (or use?) yellow snow.
this.snowCharacter = '•'; // • = bullet, · is square on some systems etc.
this.snowStick = true; // Whether or not snow should "stick" at the bottom. When off, will never collect.
this.useMeltEffect = true; // When recycling fallen snow (or rarely, when falling), have it "melt" and fade out if browser supports it
this.useTwinkleEffect = false; // Allow snow to randomly "flicker" in and out of view while falling
this.usePositionFixed = false; // true = snow not affected by window scroll. may increase CPU load, disabled by default - if enabled, used only where supported
// --- less-used bits ---
this.flakeLeftOffset = 0; // amount to subtract from edges of container
this.flakeRightOffset = 0; // amount to subtract from edges of container
this.flakeWidth = 8; // max pixel width for snow element
this.flakeHeight = 8; // max pixel height for snow element
this.vMaxX = 5; // Maximum X velocity range for snow
this.vMaxY = 4; // Maximum Y velocity range
this.zIndex = 0; // CSS stacking order applied to each snowflake
// --- End of user section ---
// jslint global declarations
/*global window, document, navigator, clearInterval, setInterval */
var addEvent = (typeof(window.attachEvent)=='undefined'?function(o,evtName,evtHandler) {
return o.addEventListener(evtName,evtHandler,false);
}:function(o,evtName,evtHandler) {
return o.attachEvent('on'+evtName,evtHandler);
});
var removeEvent = (typeof(window.attachEvent)=='undefined'?function(o,evtName,evtHandler) {
return o.removeEventListener(evtName,evtHandler,false);
}:function(o,evtName,evtHandler) {
return o.detachEvent('on'+evtName,evtHandler);
});
function rnd(n,min) {
if (isNaN(min)) {
min = 0;
}
return (Math.random()*n)+min;
}
function plusMinus(n) {
return (parseInt(rnd(2),10)==1?n*-1:n);
}
var s = this;
var storm = this;
this.timers = [];
this.flakes = [];
this.disabled = false;
this.active = false;
var isIE = navigator.userAgent.match(/msie/i);
var isIE6 = navigator.userAgent.match(/msie 6/i);
var isOldIE = (isIE && (isIE6 || navigator.userAgent.match(/msie 5/i)));
var isWin9X = navigator.appVersion.match(/windows 98/i);
var isiPhone = navigator.userAgent.match(/iphone/i);
var isBackCompatIE = (isIE && document.compatMode == 'BackCompat');
var noFixed = ((isBackCompatIE || isIE6 || isiPhone)?true:false);
var screenX = null;
var screenX2 = null;
var screenY = null;
var scrollY = null;
var vRndX = null;
var vRndY = null;
var windOffset = 1;
var windMultiplier = 2;
var flakeTypes = 6;
var fixedForEverything = false;
var opacitySupported = (function(){
try {
document.createElement('div').style.opacity = '0.5';
} catch (e) {
return false;
}
return true;
})();
var docFrag = document.createDocumentFragment();
if (s.flakeLeftOffset === null) {
s.flakeLeftOffset = 0;
}
if (s.flakeRightOffset === null) {
s.flakeRightOffset = 0;
}
this.meltFrameCount = 20;
this.meltFrames = [];
for (var i=0; i<this.meltFrameCount; i++) {
this.meltFrames.push(1-(i/this.meltFrameCount));
}
this.randomizeWind = function() {
vRndX = plusMinus(rnd(s.vMaxX,0.2));
vRndY = rnd(s.vMaxY,0.2);
if (this.flakes) {
for (var i=0; i<this.flakes.length; i++) {
if (this.flakes[i].active) {
this.flakes[i].setVelocities();
}
}
}
};
this.scrollHandler = function() {
// "attach" snowflakes to bottom of window if no absolute bottom value was given
scrollY = (s.flakeBottom?0:parseInt(window.scrollY||document.documentElement.scrollTop||document.body.scrollTop,10));
if (isNaN(scrollY)) {
scrollY = 0; // Netscape 6 scroll fix
}
if (!fixedForEverything && !s.flakeBottom && s.flakes) {
for (var i=s.flakes.length; i--;) {
if (s.flakes[i].active === 0) {
s.flakes[i].stick();
}
}
}
};
this.resizeHandler = function() {
if (window.innerWidth || window.innerHeight) {
screenX = window.innerWidth-(!isIE?16:2)-s.flakeRightOffset;
screenY = (s.flakeBottom?s.flakeBottom:window.innerHeight);
} else {
screenX = (document.documentElement.clientWidth||document.body.clientWidth||document.body.scrollWidth)-(!isIE?8:0)-s.flakeRightOffset;
screenY = s.flakeBottom?s.flakeBottom:(document.documentElement.clientHeight||document.body.clientHeight||document.body.scrollHeight);
}
screenX2 = parseInt(screenX/2,10);
};
this.resizeHandlerAlt = function() {
screenX = s.targetElement.offsetLeft+s.targetElement.offsetWidth-s.flakeRightOffset;
screenY = s.flakeBottom?s.flakeBottom:s.targetElement.offsetTop+s.targetElement.offsetHeight;
screenX2 = parseInt(screenX/2,10);
};
this.freeze = function() {
// pause animation
if (!s.disabled) {
s.disabled = 1;
} else {
return false;
}
for (var i=s.timers.length; i--;) {
clearInterval(s.timers[i]);
}
};
this.resume = function() {
if (s.disabled) {
s.disabled = 0;
} else {
return false;
}
s.timerInit();
};
this.toggleSnow = function() {
if (!s.flakes.length) {
// first run
s.start();
} else {
s.active = !s.active;
if (s.active) {
s.show();
s.resume();
} else {
s.stop();
s.freeze();
}
}
};
this.stop = function() {
this.freeze();
for (var i=this.flakes.length; i--;) {
this.flakes[i].o.style.display = 'none';
}
removeEvent(window,'scroll',s.scrollHandler);
removeEvent(window,'resize',s.resizeHandler);
if (!isOldIE) {
removeEvent(window,'blur',s.freeze);
removeEvent(window,'focus',s.resume);
}
};
this.show = function() {
for (var i=this.flakes.length; i--;) {
this.flakes[i].o.style.display = 'block';
}
};
this.SnowFlake = function(parent,type,x,y) {
var s = this;
var storm = parent;
this.type = type;
this.x = x||parseInt(rnd(screenX-20),10);
this.y = (!isNaN(y)?y:-rnd(screenY)-12);
this.vX = null;
this.vY = null;
this.vAmpTypes = [1,1.2,1.4,1.6,1.8]; // "amplification" for vX/vY (based on flake size/type)
this.vAmp = this.vAmpTypes[this.type];
this.melting = false;
this.meltFrameCount = storm.meltFrameCount;
this.meltFrames = storm.meltFrames;
this.meltFrame = 0;
this.twinkleFrame = 0;
this.active = 1;
this.fontSize = (10+(this.type/5)*10);
this.o = document.createElement('div');
this.o.innerHTML = storm.snowCharacter;
this.o.style.color = storm.snowColor;
this.o.style.position = (fixedForEverything?'fixed':'absolute');
this.o.style.width = storm.flakeWidth+'px';
this.o.style.height = storm.flakeHeight+'px';
this.o.style.fontFamily = 'arial,verdana';
this.o.style.overflow = 'hidden';
this.o.style.fontWeight = 'normal';
this.o.style.zIndex = storm.zIndex;
docFrag.appendChild(this.o);
this.refresh = function() {
if (isNaN(s.x) || isNaN(s.y)) {
// safety check
return false;
}
s.o.style.left = s.x+'px';
s.o.style.top = s.y+'px';
};
this.stick = function() {
if (noFixed || (storm.targetElement != document.documentElement && storm.targetElement != document.body)) {
s.o.style.top = (screenY+scrollY-storm.flakeHeight)+'px';
} else if (storm.flakeBottom) {
s.o.style.top = storm.flakeBottom+'px';
} else {
s.o.style.display = 'none';
s.o.style.top = 'auto';
s.o.style.bottom = '0px';
s.o.style.position = 'fixed';
s.o.style.display = 'block';
}
};
this.vCheck = function() {
if (s.vX>=0 && s.vX<0.2) {
s.vX = 0.2;
} else if (s.vX<0 && s.vX>-0.2) {
s.vX = -0.2;
}
if (s.vY>=0 && s.vY<0.2) {
s.vY = 0.2;
}
};
this.move = function() {
var vX = s.vX*windOffset;
s.x += vX;
s.y += (s.vY*s.vAmp);
if (s.x >= screenX || screenX-s.x < storm.flakeWidth) { // X-axis scroll check
s.x = 0;
} else if (vX < 0 && s.x-storm.flakeLeftOffset<0-storm.flakeWidth) {
s.x = screenX-storm.flakeWidth-1; // flakeWidth;
}
s.refresh();
var yDiff = screenY+scrollY-s.y;
if (yDiff<storm.flakeHeight) {
s.active = 0;
if (storm.snowStick) {
s.stick();
} else {
s.recycle();
}
} else {
if (storm.useMeltEffect && s.active && s.type < 3 && !s.melting && Math.random()>0.998) {
// ~1/1000 chance of melting mid-air, with each frame
s.melting = true;
s.melt();
// only incrementally melt one frame
// s.melting = false;
}
if (storm.useTwinkleEffect) {
if (!s.twinkleFrame) {
if (Math.random()>0.9) {
s.twinkleFrame = parseInt(Math.random()*20,10);
}
} else {
s.twinkleFrame--;
s.o.style.visibility = (s.twinkleFrame && s.twinkleFrame%2===0?'hidden':'visible');
}
}
}
};
this.animate = function() {
// main animation loop
// move, check status, die etc.
s.move();
};
this.setVelocities = function() {
s.vX = vRndX+rnd(storm.vMaxX*0.12,0.1);
s.vY = vRndY+rnd(storm.vMaxY*0.12,0.1);
};
this.setOpacity = function(o,opacity) {
if (!opacitySupported) {
return false;
}
o.style.opacity = opacity;
};
this.melt = function() {
if (!storm.useMeltEffect || !s.melting) {
s.recycle();
} else {
if (s.meltFrame < s.meltFrameCount) {
s.meltFrame++;
s.setOpacity(s.o,s.meltFrames[s.meltFrame]);
s.o.style.fontSize = s.fontSize-(s.fontSize*(s.meltFrame/s.meltFrameCount))+'px';
s.o.style.lineHeight = storm.flakeHeight+2+(storm.flakeHeight*0.75*(s.meltFrame/s.meltFrameCount))+'px';
} else {
s.recycle();
}
}
};
this.recycle = function() {
s.o.style.display = 'none';
s.o.style.position = (fixedForEverything?'fixed':'absolute');
s.o.style.bottom = 'auto';
s.setVelocities();
s.vCheck();
s.meltFrame = 0;
s.melting = false;
s.setOpacity(s.o,1);
s.o.style.padding = '0px';
s.o.style.margin = '0px';
s.o.style.fontSize = s.fontSize+'px';
s.o.style.lineHeight = (storm.flakeHeight+2)+'px';
s.o.style.textAlign = 'center';
s.o.style.verticalAlign = 'baseline';
s.x = parseInt(rnd(screenX-storm.flakeWidth-20),10);
s.y = parseInt(rnd(screenY)*-1,10)-storm.flakeHeight;
s.refresh();
s.o.style.display = 'block';
s.active = 1;
};
this.recycle(); // set up x/y coords etc.
this.refresh();
};
this.snow = function() {
var active = 0;
var used = 0;
var waiting = 0;
var flake = null;
for (var i=s.flakes.length; i--;) {
if (s.flakes[i].active == 1) {
s.flakes[i].move();
active++;
} else if (s.flakes[i].active === 0) {
used++;
} else {
waiting++;
}
if (s.flakes[i].melting) {
s.flakes[i].melt();
}
}
if (active<s.flakesMaxActive) {
flake = s.flakes[parseInt(rnd(s.flakes.length),10)];
if (flake.active === 0) {
flake.melting = true;
}
}
};
this.mouseMove = function(e) {
if (!s.followMouse) {
return true;
}
var x = parseInt(e.clientX,10);
if (x<screenX2) {
windOffset = -windMultiplier+(x/screenX2*windMultiplier);
} else {
x -= screenX2;
windOffset = (x/screenX2)*windMultiplier;
}
};
this.createSnow = function(limit,allowInactive) {
for (var i=0; i<limit; i++) {
s.flakes[s.flakes.length] = new s.SnowFlake(s,parseInt(rnd(flakeTypes),10));
if (allowInactive || i>s.flakesMaxActive) {
s.flakes[s.flakes.length-1].active = -1;
}
}
storm.targetElement.appendChild(docFrag);
};
this.timerInit = function() {
s.timers = (!isWin9X?[setInterval(s.snow,s.animationInterval)]:[setInterval(s.snow,s.animationInterval*3),setInterval(s.snow,s.animationInterval)]);
};
this.init = function() {
s.randomizeWind();
s.createSnow(s.flakesMax); // create initial batch
addEvent(window,'resize',s.resizeHandler);
addEvent(window,'scroll',s.scrollHandler);
if (!isOldIE) {
addEvent(window,'blur',s.freeze);
addEvent(window,'focus',s.resume);
}
s.resizeHandler();
s.scrollHandler();
if (s.followMouse) {
addEvent(document,'mousemove',s.mouseMove);
}
s.animationInterval = Math.max(20,s.animationInterval);
s.timerInit();
};
var didInit = false;
this.start = function(bFromOnLoad) {
if (!didInit) {
didInit = true;
} else if (bFromOnLoad) {
// already loaded and running
return true;
}
if (typeof s.targetElement == 'string') {
var targetID = s.targetElement;
s.targetElement = document.getElementById(targetID);
if (!s.targetElement) {
throw new Error('Snowstorm: Unable to get targetElement "'+targetID+'"');
}
}
if (!s.targetElement) {
s.targetElement = (!isIE?(document.documentElement?document.documentElement:document.body):document.body);
}
if (s.targetElement != document.documentElement && s.targetElement != document.body) {
s.resizeHandler = s.resizeHandlerAlt; // re-map handler to get element instead of screen dimensions
}
s.resizeHandler(); // get bounding box elements
s.usePositionFixed = (s.usePositionFixed && !noFixed); // whether or not position:fixed is supported
fixedForEverything = s.usePositionFixed;
if (screenX && screenY && !s.disabled) {
s.init();
s.active = true;
}
};
function doStart() {
s.start(true);
}
if (document.addEventListener) {
// safari 3.0.4 doesn't do DOMContentLoaded, maybe others - use a fallback to be safe.
document.addEventListener('DOMContentLoaded',doStart,false);
window.addEventListener('load',doStart,false);
} else {
addEvent(window,'load',doStart);
}
}
snowStorm = new SnowStorm();
//]]>
</script>
<!-- customize the snowStorm object -->
<script>
snowStorm.snowColor = '#99ccff'; // blue-ish snow!?
snowStorm.flakesMaxActive = 96; // show more snow on screen at once
snowStorm.useTwinkleEffect = true; // let the snow flicker in and out of view
</script>
CODE 2:
DEMO
<script>
// <![CDATA[
var speed=40; // lower number for faster
var flakes=20; // number of flakes
var swide, shigh, sdown, sleft, boddie;
var dx=new Array();
var xp=new Array();
var yp=new Array();
var am=new Array();
var dy=new Array();
var flaky=new Array();
var flake_image=new Array();
flake_image[0]='iVBORw0KGgoAAAANSUhEUgAAAEgAAABTCAMAAAALIrEtAAADAFBMVEUAAADx/vr///rt/vn///f8'+
'//X///n7//T///j+//by//z///3s8+n0//z09u32+e/N19P///vv/vjw8+rv//r0///w9ezo7+nE'+
'2dR5hHzw//7C1NDd5Nxte3H8/Pbs/fzl7ObCzcVve3Lz8+l9tarG1dF5h37K1s/I083s8Of4+fHS'+
'3NP+/fVir6Fhtadu0MTp7OTEz8qSua/9+/Jlx7n5/PPo9vPC08zI2dNsqp92sKWhwbd1i4NvsKR+'+
'1MZrxbWxzMLq+vdiwbO86ens8u3i5t6Y0snD6emj2NGTnpqBk4zU4NmZwLeRvbOOua+z1tLf/v3Y'+
'///w+/e61tS92tjg8O7k6uK/0Mm7yMJ8hn1+l4+Eyb3P2dB6z8J7zsKx3du80s5fuq3R3di5zsfN'+
'1s5zqZ1yvrFzxbh/tKnZ3td+r6V72Mro//zj/frh6uba7Ora5+Tg6OCp3dd5n5WPr6aYp6HN3Nad'+
'0MaFzsEZKBxztan4//+lx751uK6Jua5rtalty7x20sSE2ct7wrdVqpzg9vTU5uS429qxyMLO7Oq/'+
'19OGwrhfcWiM1ch+vLGAuK9vlopor6SsycBVaV9jqZxjhHl7ua7//vhbrqB3vbNdpZjD3tx1yLu5'+
'4eDM4t/G7+/a4t1+w7jz+PCGr6WNxrt8r6Tc5d+b2s/W3tVsiICsv7miw7x3zL6P0MXv8Odslo13'+
'xbnc8e/K9/aNx7zI29jC4uKLw7pfe3B7uq5hmIxovK6dxr10sqhas6eGqKGt4+HQ//2BmpKbyMCT'+
'tayHtq5ppJjU3tuAqJ6BoZdrwLJsnpKHua+Ys6l3s6ZujoN739NtqZ2v2tfC9/WUx77l8u58q6Gj'+
'1MyRpJ6GsaiFtKthfHCZubCPtKqh49qD39LV8e6z6ee98O6u0Mumz8uSv7aAqJ6Tyb+Hy7+TvLOZ'+
'ubGQ3dGOxLlel46K5tZss6RRopPU9vX5/vqCrKOzw7ugubAcLiM4WUyJwLNpoJSdw7yExbeT1MpJ'+
'bWRuvrGHua1asaNpEoPoAAABAHRSTlMAqKioqKioqKioqKioqKioqKioqKioqKioA6ioqBCoqKio'+
'B6ioqBmoqKioqKioqKioqKioqKioqKioqKgoqKaoqKioqKioqKimDCKoqKioqKioqKioqKioqAE1'+
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if (typeof('addRVLoadEvent')!='function') function addRVLoadEvent(funky) {
var oldonload=window.onload;
if (typeof(oldonload)!='function') window.onload=funky;
else window.onload=function() {
if (oldonload) oldonload();
funky();
}
}
addRVLoadEvent(the_weather_outside);
function the_weather_outside() { if (document.getElementById) {
var f, i;
boddie=document.createElement("div");
boddie.style.position="fixed";
boddie.style.top="0px";
boddie.style.left="0px";
boddie.style.width="1px";
boddie.style.height="1px";
boddie.style.overflow="visible";
boddie.style.backgroundColor="transparent";
document.body.appendChild(boddie);
set_width();
for (i=0; i<flakes; i++) {
dx[i]=0;
am[i]=6+Math.random()*18;
xp[i]=am[i]+Math.random()*(swide-72-2*am[i]);
yp[i]=Math.random()*shigh;
dy[i]=1+Math.floor(Math.random()*2);
f=document.createElement("img");
f.src="data:image/gif;base64,"+flake_image[i%flake_image.length];
f.width=72-54*(i/flakes);
f.height=83-62*(i/flakes);
f.style.position="absolute";
f.style.overflow="hidden";
f.style.zIndex=i;
f.style.top=yp[i]+"px";
f.style.left=xp[i]+"px";
flaky[i]=f;
boddie.appendChild(f);
}
setInterval("winter_snow()", speed);
}}
window.onresize=set_width;
function set_width() {
var sw_min=999999;
var sh_min=999999;
if (document.documentElement && document.documentElement.clientWidth) {
if (document.documentElement.clientWidth>0) sw_min=document.documentElement.clientWidth;
if (document.documentElement.clientHeight>0) sh_min=document.documentElement.clientHeight;
}
if (typeof(self.innerWidth)!="undefined" && self.innerWidth) {
if (self.innerWidth>0 && self.innerWidth<sw_min) sw_min=self.innerWidth;
if (self.innerHeight>0 && self.innerHeight<sh_min) sh_min=self.innerHeight;
}
if (document.body.clientWidth) {
if (document.body.clientWidth>0 && document.body.clientWidth<sw_min) sw_min=document.body.clientWidth;
if (document.body.clientHeight>0 && document.body.clientHeight<sh_min) sh_min=document.body.clientHeight;
}
if (sw_min==999999 || sh_min==999999) {
sw_min=800;
sh_min=600;
}
swide=sw_min;
shigh=sh_min;
}
function winter_snow() {
for (var i=0; i<flakes; i++) {
yp[i]+=dy[i];
if (yp[i]>shigh){
am[i]=6+Math.random()*18;
xp[i]=am[i]+Math.random()*(swide-flaky[i].width-2*am[i]);
yp[i]=-flaky[i].height;
dy[i]=1+Math.floor(Math.random()*2);
}
dx[i]+=0.02+Math.random()/10;
flaky[i].style.top=yp[i]+"px";
flaky[i].style.left=(xp[i]+am[i]*Math.sin(dx[i]))+"px";
}
}
// ]]>
</script>
CODE 3:
Bạn có thể dùng code sau cho nhẹ nhưng hướng bay của bông tuyết không chịu sự tác động của chuột
<script type='text/javascript'>
//<![CDATA[
var SNOW_Picture="http://2.bp.blogspot.com/-sqRmrWXtrcU/Urgz3cEa5VI/AAAAAAAAkVc/kjw2AsekkoE/s1600/snow.png";//Bông tuyết
var SNOW_no=56;//Số lượng bông tuyết
var SNOW_browser_IE_NS=(document.body.clientHeight)?1:0;
var SNOW_browser_MOZ=(self.innerWidth)?1:0;
var SNOW_browser_IE7=(document.documentElement.clientHeight)?1:0;
var SNOW_Time;
var SNOW_dx,SNOW_xp,SNOW_yp;
var SNOW_am,SNOW_stx,SNOW_sty;
var i,SNOW_Browser_Width,SNOW_Browser_Height;if(SNOW_browser_IE_NS){SNOW_Browser_Width=document.body.clientWidth;SNOW_Browser_Height=document.body.clientHeight;}else{if(SNOW_browser_MOZ){SNOW_Browser_Width=self.innerWidth-20;SNOW_Browser_Height=self.innerHeight;}else{if(SNOW_browser_IE7){SNOW_Browser_Width=document.documentElement.clientWidth;SNOW_Browser_Height=document.documentElement.clientHeight;}}}SNOW_dx=new Array();SNOW_xp=new Array();SNOW_yp=new Array();SNOW_am=new Array();SNOW_stx=new Array();SNOW_sty=new Array();for(i=0;i<SNOW_no;++i){SNOW_dx[i]=0;SNOW_xp[i]=Math.random()*(SNOW_Browser_Width-50);SNOW_yp[i]=Math.random()*SNOW_Browser_Height;SNOW_am[i]=Math.random()*20;SNOW_stx[i]=0.02+Math.random()/10;SNOW_sty[i]=0.7+Math.random();if(i==0){document.write('<\div id="SNOW_flake'+i+'" style="position: fixed; z-index: '+i+'; visibility: visible; top: 15px; left: 15px;"><img src="'+SNOW_Picture+'" border="0"></div>');}else{document.write('<\div id="SNOW_flake'+i+'" style="position: fixed; z-index: '+i+'; visibility: visible; top: 15px; left: 15px;"><img src="'+SNOW_Picture+'" border="0"></div>');}}function SNOW_Weather(){for(i=0;i<SNOW_no;++i){SNOW_yp[i]+=SNOW_sty[i];if(SNOW_yp[i]>SNOW_Browser_Height-50){SNOW_xp[i]=Math.random()*(SNOW_Browser_Width-SNOW_am[i]-30);SNOW_yp[i]=0;SNOW_stx[i]=0.02+Math.random()/10;SNOW_sty[i]=0.7+Math.random();}SNOW_dx[i]+=SNOW_stx[i];document.getElementById("SNOW_flake"+i).style.top=SNOW_yp[i]+"px";document.getElementById("SNOW_flake"+i).style.left=SNOW_xp[i]+SNOW_am[i]*Math.sin(SNOW_dx[i])+"px";}SNOW_Time=setTimeout("SNOW_Weather()",20);}SNOW_Weather();
//]]>
</script>
Tạo chữ "Merry Chrismas":Bạn đăng nhập vào Blog > chọn Thiết kế > Thêm tiện ích HTML/Javacript rồi dán code phía dưới vào và bấm Lưu lại là xong.
<div style='position: fixed; top: 0%; right: 0%;z-index:9999'/><img alt="Tdb blogspot" src="Thay link ảnh của bạn vào đây"/></a> </div>
Nếu thích thì kết hợp cả 2 code trên.Bấm chuột vào hình bạn thích để lấy Link thay vào Code trên nhé:
Nguồn: bloggertricksandtoolz.com
