window.onload = function (){
var aDiv = document.getElementsByTagName('div');
for(var i =0; i<20; i++){
document.body.innerHTML +='<div class="v">' +(i)+ '</div>';
var yNum = i%10;
var zNum = parseInt(i/10);
if(zNum){
aDiv[i].style.left = 500+50*yNum + 'px'
aDiv[i].style.top = 500-50*yNum + 'px';
}else{
aDiv[i].style.left = 50*i + 'px'
aDiv[i].style.top = 50*i + 'px';
}
aDiv[0].style.display = 'none';
};
};
div.v{position: absolute; text-align:center; width:50px; height:50px; background:red; font-size:25px; line-height:50px; color:#fff;}
console