div{
	color:red;
}

#box1{
	top:50px;
	left:50px;
	position:absolute;
	width:750px;
	height:450px;
	background:rgb(23,97,172);
}

#box2{
	top:50px;
	left:150px;
	position:absolute;
	width:50px;
	height:250px;
	background:rgb(255,255,255);
}

#box3{
	top:150px;
	left:50px;
	position:absolute;
	width:250px;
	height:50px;
	background:rgb(255,255,255);
}

#box4{
	top:100px;
	left:300px;
	position:absolute;
	width:500px;
	height:50px;
	background:rgb(255,255,255);
}
	
#box5{
	top:200px;
	left:300px;
	position:absolute;
	width:500px;
	height:50px;
	background:rgb(255,255,255);
}

#box6{
	top:300px;
	left:50px;
	position:absolute;
	width:750px;
	height:50px;
	background:rgb(255,255,255);
}
	
#box7{
	top:400px;
	left:50px;
	position:absolute;
	width:750px;
	height:50px;
	background:rgb(255,255,255);
}