.black { background-color: black; }
.white { background-color: white; }
.yellow { background-color: yellow; }
.green { background-color: green; }
.orange { background-color: orange; }
.red { background-color: red; }
.blue { background-color: blue; }
.lightblue { background-color: lightblue; }
.gray { background-color: #999; }
.white-c { background-color: #FFF;text-align: center;color: #000; }
.white-c:before { content: 'C';position: relative;top: 4px; }
.yellow-green { background: -moz-linear-gradient(left, rgba(255,243,2,1) 43%, rgba(33,151,65,1) 57%); background: -webkit-linear-gradient(left, rgba(255,243,2,1) 43%,rgba(33,151,65,1) 57% ); }