@charset "UTF-8";
/* CSS Document */

.box{	
	width: 680px;
	margin:40px auto;
	display: flex;
	flex-wrap: wrap;
	
}

.winter{
	background-image: url("images/winter.jpg");
	
}

.spring{
	background-image: url("images/spring.jpg");
	
}

.summer{
	background-image: url("images/summer.jpg");
}

.fall{
	background-image: url("images/fall.jpg");
}

.season-box{
	
width:330px;
Height:214px;
border-radius:5px;
display:block;
margin:5px;
background-size:100%;
background-repeat: no-repeat;
opacity:.5;
transition:opacity 2s;
}

.season-box:hover{
	opacity: 1.0;
}