<
html
>
<
head
>
</
head
>
<
body
>
<
div
id
=
"d"
>
js控制字体大小
</
div
>
<
script
>
var kk=0;
var bb=0;
function sizeChange()
{
if(kk>80){kk=0;}
else if(kk>40){bb=80-kk;}
else bb=kk;
kk++;
document.getElementById("d").style.fontSize=bb;
}
setInterval("sizeChange()",80);
</
script
>
</
body
>
</
html
>