index.html:
<!DOCTYPE HTML>
<div id="game_area">
</div>
script.js:
function rand(min, max){
   return Math.floor(Math.random() * (max - min + 1)) + min;
}
function generate(){
		var level, size;
		level = 1;
		
	for(var i = level;i<level+level+1;i++){
		var num = rand(1,10);
		
		
		$("#game_area").append('<div class="num'+i+'"><p  class="numValue'+i+'">'+num+'</p></div>');
		
		size = rand(50,100);
		margin = rand(1,104);
		marginLeft = rand(1, 300);
		
		$(".num" +i).css({
			'width':size,
			'height':size,
			'border-radius':size + 1,
			'margin-top':margin,
			'margin-left':marginLeft,
			'border':'1px solid #000',
			'text-align': 'center',
			'cursor': '	pointer'
		});
		$(".numValue").css({
			'padding':rand(50,100)/5
		});
	}
}
css:
#game_area{
	width: 700px;
	height: 500px;
	border:1px solid #ccc;
	margin: 0 auto;
	margin-top: 5px;
}