html, body, div, span, applet, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre, a, abbr, acronym, address, big, cite, code, del, dfn, em, img, ins, kbd, q, s, samp, small, strike, strong, sub, sup, tt, var, b, u, i, center, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, table, caption, tbody, tfoot, thead, tr, th, td, article, aside, canvas, details, embed, figure, figcaption, footer, header, hgroup, menu, nav, output, ruby, section, summary, time, mark, audio, video { margin: 0; padding: 0; border: 0; font-size: 100%; font: inherit; vertical-align: baseline; }
article, aside, details, figcaption, figure, footer, header, hgroup, menu, nav, section { display: block; }
body { line-height: 1; }
ol, ul { list-style: none; }
blockquote, q { quotes: none; }
blockquote:before, blockquote:after, q:before, q:after { content: ''; content: none; }
table { border-collapse: collapse; border-spacing: 0; }
/* end reset */

header {
     width: 100%;
     margin: 0 0 20px;
     background: black;
}
 header form {
     width: 50%;
     margin: 0 auto;
     padding: 10px;
     text-align: center;
}
 header form fieldset {
     display: inline-block;
}
 header form fieldset legend {
     margin: 0 16px 0;
     font: normal 15px times;
     display: inline-block;
     color: white;
     float: left;
     text-align: left;
}
 header form fieldset legend:first-child {
     margin-left: 0;
}
 header form fieldset input {
     height: 30px;
     padding: 0 6px;
     display: inline-block;
     float: left;
     border: 0 none;
}
 header form fieldset #enterNum {
     margin-right: 12px;
}
 header form fieldset #enterSize {
     margin-right: 16px;
}
 header form #score-key {
     height: 38px;
     margin: 0 30px 0 0;
     display: inline-block;
     color: white;
     font: normal 15px/20px times;
}
 header form #score {
     display: inline-block;
     color: white;
}
 h1 {
     width: 50%;
     margin: 26px auto 20px;
     text-align: center;
     font: normal 36px times;
}
 h1 span {
     width: 14px;
     height: 52px;
     margin: -4px 20px 0 0;
     background: url("bracket1.gif");
     display: inline-block;
     vertical-align: middle;
}
 h1 span + span {
     margin: -4px 0 0 20px;
     background: url("bracket2.gif");
}
 #container {
     margin: 0 auto;
     padding: 0 20px 20px;
     background: #f1f1f1;
     border: 2px solid #ccc;
     overflow: hidden;
     -webkit-border-radius: 3px;
     -moz-border-radius: 3px;
     -o-border-radius: 3px;
     border-radius: 3px;
}
 #container div {
     margin: 20px 20px 0 0;
     position: relative;
     text-align: center;
     vertical-align: middle;
     float: left;
     border: 2px solid grey;
     cursor: pointer;
     font: times;
     font-size: 1.3em;
}
 #container div:nth-of-type(6n) {
     margin-right: 0;
}
 td div.show {
     background: none;
}
 td div:hover {
     cursor: pointer;
}
 #btn {
     height: 30px;
     -webkit-appearance: none;
     border: 2px solid #ccc;
     background: #c00;
     font: normal 15px times;
     color: white;
     -webkit-border-radius: 3px;
     -moz-border-radius: 3px;
     -o-border-radius: 3px;
     border-radius: 3px;
}
 #btn:hover {
     cursor: pointer;
}
 #container div {
     -webkit-border-radius: 3px;
     -moz-border-radius: 3px;
     -o-border-radius: 3px;
     border-radius: 3px;
     -webkit-transition: -webkit-transform 1s;
     -moz-transition: -moz-transform 1s;
     -o-transition: -o-transform 1s;
     transition: transform 1s;
     -webkit-transform-style: preserve-3d;
     -moz-transform-style: preserve-3d;
     -o-transform-style: preserve-3d;
     transform-style: preserve-3d;
}
 #container div.show {
     -webkit-transform: rotateY( 180deg );
     -moz-transform: rotateY( 180deg );
     -o-transform: rotateY( 180deg );
     transform: rotateY( 180deg );
}
 #container div figure {
     width: 100%;
     display: block;
     color: black;
     text-align: center;
     font-weight: bold;
     position: absolute;
     -webkit-backface-visibility: hidden;
     -moz-backface-visibility: hidden;
     -o-backface-visibility: hidden;
     backface-visibility: hidden;
}
 #container div .front {
     height:100%;
     display: block;
     background: url("bg.jpg");
}
 #container div .back {
     width: 100%;
     background: white;
     -webkit-transform: rotateY( 180deg );
     -moz-transform: rotateY( 180deg );
     -o-transform: rotateY( 180deg );
     transform: rotateY( 180deg );
}