Changes

table.gray-first {border-collapse: collapse; border-spacing: 0; border: 1px solid black;}

table.twocolortable{border: 1px solid black;}

.scalable{max-height:298px;float: left;margin-right:2%;width:45%;}

.scalable +.scalable{min-height:298px;float: none;margin-right:0;}

table.innertable {border: none; }

table.innertable td {border: none; min-width: 5em; padding: 0;}