body {color:black; background:#f6f6f6;}

.layout {
  margin:0 10%;
  border-left:1px solid silver;
  border-right:1px solid silver;
  color:black;
  background:white;
}
.inner {padding:5px 20px;}

#quiz {width:100%; border-collapse:collapse;}
#quiz th {border:1px solid black; padding:4px; font-weight:normal;}
#quiz td {border:1px solid black; padding:4px 8px;}

#options {width:100%;}
#options td {width:25%;}