3. Thêm hiệu ứng pháo hoa vào landing page
Last updated
Last updated
Để thêm hiệu ứng pháo hoa vào Landing Page, các bạn copy đoạn mã sau và dán vào trước thẻ body (Before tag <body>)
Copy đoạn mã sau:
<script type="text/javascript">
// <![CDATA[
var bits=80; // how many bits
var speed=33; // how fast - smaller is faster
var bangs=5; // how many can be launched simultaneously (note that using too many can slow the script down)
var colours=new Array("#03f", "#f03", "#0e0", "#93f", "#0cf", "#f93", "#f0c");
// blue red green purple cyan orange pink
/****************************
* Fireworks Effect *
*(c)2004-11 mf2fm web-design*
* http://www.mf2fm.com/rv *
* DON'T EDIT BELOW THIS BOX *
****************************/
var bangheight=new Array();
var intensity=new Array();
var colour=new Array();
var Xpos=new Array();
var Ypos=new Array();
var dX=new Array();
var dY=new Array();
var stars=new Array();
var decay=new Array();
var swide=800;
var shigh=600;
var boddie;
window.onload=function() { if (document.getElementById) {
var i;
boddie=document.createElement("div");
boddie.style.position="fixed";
boddie.style.top="0px";
boddie.style.left="0px";
boddie.style.overflow="visible";
boddie.style.width="1px";
boddie.style.height="1px";
boddie.style.backgroundColor="transparent";
document.body.appendChild(boddie);
set_width();
for (i=0; i<bangs; i++) {
write_fire(i);
launch(i);
setInterval('stepthrough('+i+')', speed);
}
}}
function write_fire(N) {
var i, rlef, rdow;
stars[N+'r']=createDiv('|', 12);
boddie.appendChild(stars[N+'r']);
for (i=bits*N; i<bits+bits*N; i++) {
stars[i]=createDiv('*', 13);
boddie.appendChild(stars[i]);
}
}
function createDiv(char, size) {
var div=document.createElement("div");
div.style.font=size+"px monospace";
div.style.position="absolute";
div.style.backgroundColor="transparent";
div.appendChild(document.createTextNode(char));
return (div);
}
function launch(N) {
colour[N]=Math.floor(Math.random()*colours.length);
Xpos[N+"r"]=swide*0.5;
Ypos[N+"r"]=shigh-5;
bangheight[N]=Math.round((0.5+Math.random())*shigh*0.4);
dX[N+"r"]=(Math.random()-0.5)*swide/bangheight[N];
if (dX[N+"r"]>1.25) stars[N+"r"].firstChild.nodeValue="/";
else if (dX[N+"r"]<-1.25) stars[N+"r"].firstChild.nodeValue="\\";
else stars[N+"r"].firstChild.nodeValue="|";
stars[N+"r"].style.color=colours[colour[N]];
}
function bang(N) {
var i, Z, A=0;
for (i=bits*N; i<bits+bits*N; i++) {
Z=stars[i].style;
Z.left=Xpos[i]+"px";
Z.top=Ypos[i]+"px";
if (decay[i]) decay[i]--;
else A++;
if (decay[i]==15) Z.fontSize="7px";
else if (decay[i]==7) Z.fontSize="2px";
else if (decay[i]==1) Z.visibility="hidden";
Xpos[i]+=dX[i];
Ypos[i]+=(dY[i]+=1.25/intensity[N]);
}
if (A!=bits) setTimeout("bang("+N+")", speed);
}
function stepthrough(N) {
var i, M, Z;
var oldx=Xpos[N+"r"];
var oldy=Ypos[N+"r"];
Xpos[N+"r"]+=dX[N+"r"];
Ypos[N+"r"]-=4;
if (Ypos[N+"r"]<bangheight[N]) {
M=Math.floor(Math.random()*3*colours.length);
intensity[N]=5+Math.random()*4;
for (i=N*bits; i<bits+bits*N; i++) {
Xpos[i]=Xpos[N+"r"];
Ypos[i]=Ypos[N+"r"];
dY[i]=(Math.random()-0.5)*intensity[N];
dX[i]=(Math.random()-0.5)*(intensity[N]-Math.abs(dY[i]))*1.25;
decay[i]=16+Math.floor(Math.random()*16);
Z=stars[i];
if (M<colours.length) Z.style.color=colours[i%2?colour[N]:M];
else if (M<2*colours.length) Z.style.color=colours[colour[N]];
else Z.style.color=colours[i%colours.length];
Z.style.fontSize="13px";
Z.style.visibility="visible";
}
bang(N);
launch(N);
}
stars[N+"r"].style.left=oldx+"px";
stars[N+"r"].style.top=oldy+"px";
}
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;
}
// ]]>
</script>