Not a a native english speaker so there\'s probably a better way to shape the question...anyway:
What I want to create is similar to the header here: http://thegreatdisc
Although there are other solutions. % will scale the div to image size or the aspect ratio.
.responsive-image{ width: 100%; background-image: url(x.jpg); background-repeat:no-repeat; background-size: 100% 100%;
}