div#tabsbox{
  background-color: gray;
}
ul#tabslist{
  list-style-type: none;
  padding: 0;
  margin: 0;
  float: left;
  width: 100%;
  color: gray;
  background-color: white;
}
ul#tabslist li {
  display: inline;
}
ul#tabslist li a
{
  float: left;
  width: 5em;
  color: white;
  background-color: blue;
  padding: 0.2em 1em;
  text-decoration: none;
  border-right: 1px solid #fff;
}
ul#tabslist li a:hover
{
  background-color: black;
  color: white;
}