body{
	background-color: lightblue;
}
h2{
	text-align: center;
	background-color: yellow;
	color: red;
	
}
img.primera{
	float: left;
	border: solid red;
	margin-right: 10px;
}
img.segunda{
	margin-left: 42%;
	border: solid red;
}
img.tercera{
	border: solid red;
	float: right;
}
h1{
	text-align: center;
}