Submitted solutions for "Hit the target"

GottZ

.box {
        background-image: radial-gradient(circle at center,
                #C39F76 12.5%,
                transparent 13%,
                transparent 25%,
                #C39F76 25.5%,
                #C39F76 37.5%,
                transparent 38%,
                transparent 50.5%,
                #C39F76 51%,
                #C39F76 63.5%,
                transparent 64%
        );
}