style.css

body,div,dl,dt,dd,ul,ol,li,pre,form,fieldset,input,textarea,p,blockquote,th,td{margin:0;padding:0;}table{border-collapse:collapse;border-spacing:0;}fieldset,img{border:0;}address,caption,cite,code,dfn,th,var{font-style:normal;font-weight:normal;}ol,ul{list-style:none;}caption,th{text-align:left;}q:before,q:after{content:'';}abbr,acronym{border:0;}
.main-body {margin: 2em auto 0;max-width: 700px; padding: 10px;}
.p-r-s h3{font-size:1.1em}
.p-r-s .choices{text-align:center}
.p-r-s .choices li{display:inline-block;width:25%}
.p-r-s .scores{border-bottom:5px solid #2a2829;border-top:5px solid #2a2829;text-align:center}
.p-r-s .scores .score-box{display:inline-block;padding:5px 10px;text-align:center;width:40%;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}
.p-r-s .decider li{border:5px solid #2a2829;display:block;float:left;padding:5px 10px;width:100%;-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}
.p-r-s .decider li:first-child{margin-bottom:10px}
.p-r-s .decider li span{margin-right:20px}
.p-r-s #computerScore,.p-r-s #playerScore{font-size:3em}
.p-r-s #playerChoice,.p-r-s #computerChoice{font-weight:700;text-transform:uppercase}