div.regularChallenge div.challengeOnePartOuter{background-color:#4C4C4C;background-image:url("../Images/challenges-main-box-top.png?v=4879");background-position:left top;background-repeat:no-repeat}div.regularChallenge div.challengeOnePartInner{background-image:url("../Images/challenges-main-box-bottom.png?v=4879");background-position:left bottom;background-repeat:no-repeat}div.regularChallenge div.challengeTwoPartTopOuter{border-radius:8px 8px 0 0;background-color:#4C4C4C;background-image:url("../Images/challenges-main-box-top.png?v=4879");background-position:left top;background-repeat:no-repeat}div.regularChallenge div.challengeTwoPartTopInner{background-image:url("../Images/challenges-main-box-inner-bottom.png?v=4879");background-position:left bottom;background-repeat:no-repeat}div.regularChallenge div.challengeTwoPartBottomOuter{border-radius:0 0 8px 8px;background-color:#4C4C4C}div.regularChallenge div.challengeTwoPartBottomInner{background-image:url("../Images/challenges-main-box-flat-bottom.png?v=4879");background-position:left bottom;background-repeat:no-repeat}