@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: none; opacity: .5; transition: opacity 2s;}

.season-box:hover {opacity: 1.0;}
	
.winter {background: url("images/winter.jpg");}

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

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

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