Epic Featured Image Section size

The Featured Image in Sec. 7… the image is not “responsive” on Ipad or Iphones… it remains full size.

I have used this code, but it won’t work!

/* Home Feature 7 */

.home-feature-7 {
	margin: 0;
	text-align: left;
	width: 100%;
    height: 320px;
    background-size: contain!important;
}

.home-feature-7 .widget {
	margin: 0 0 60px;
}

Any suggestions? Media queries? Add something for ipads?