*{box-sizing:border-box}.carousel img{height:400px;display:inline-block;background-position:center;background-repeat:no-repeat;background-image:url("loading.php")}.caption{margin:0;padding:10px;text-align:center}@media screen and ( min-width: 768px ){.carousel img{height:400px}}@media (max-width: 480px){.carousel img{height:400px}}