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

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