@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:1.0;}

.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");}