tabs.css in Zircon Profile 8.0

/* --------------- System Tabs  --------------- */

div.tabs {
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  margin-bottom: 20px;
}
.tabs ul.primary {
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
}
.tabs ul.primary li a {
  color: #000;
  background-color: #ededed;
  border-color: #bbb;
  border-style: solid solid none solid;
  border-width: 1px;
  height: 1.8em;
  line-height: 1.9;
  display: block;
  font-size: 0.929em;
  padding: 0 10px 3px;
  text-shadow: 0 1px 0 #fff;
}
.tabs ul.primary li.is-active a {
  background-color: #ffffff;
  border: 1px solid #bbb;
}
@media screen and (max-width: 37.5em) { /* 600px */
  .tabs ul.primary {
    border-bottom: 1px solid #bbb;
  }
  .tabs ul.primary li {
    display: block;
    margin: 0;
  }
  .tabs ul.primary li a {
    padding: 5px 10px;
  }
  .tabs ul.primary li.is-active a {
    border-bottom: none;
  }
}
@media screen and (min-width: 37.5em) { /* 600px */
  .tabs ul.primary {
    border-collapse: collapse;
    height: auto;
    line-height: normal;
    padding: 0 3px;
    margin: 0;
    overflow: hidden;
    border: none;
    background: transparent url(../../images/tabs-border.png) repeat-x left bottom;
    white-space: nowrap;
  }
  .tabs ul.primary li {
    display: block;
    float: left; /* LTR */
    vertical-align: bottom;
    margin: 0 5px 0 0; /* LTR */
  }
  [dir="rtl"] .tabs ul.primary li {
    margin: 0 0 0 5px;
    float: right;
  }
  .tabs ul.primary li a {
    float: left; /* not LTR */
    border-top-left-radius: 6px;
    border-top-right-radius: 6px;
  }
  .tabs ul.primary li.is-active a {
    border-bottom: 1px solid #fff;
  }
}
.tabs ul.secondary {
  border-bottom: none;
  margin: 5px;
  padding: 0.5em 0;
  overflow: hidden;
}
.tabs ul.secondary li {
  border-right: 1px solid #ccc; /* LTR */
  display: block;
  float: left; /* LTR */
  margin: 0;
  padding: 0 1em;
}
[dir="rtl"] .tabs ul.secondary li {
  border-left: 1px solid #ccc;
  border-right: none;
  float: right;
}
.tabs ul.secondary li:last-child {
  border-right: none; /* LTR */
}
[dir="rtl"] .tabs ul.secondary li:last-child {
  border-left: none;
}
.tabs ul.secondary li:first-child {
  padding-left: 0; /* LTR */
}
[dir="rtl"] .tabs ul.secondary li:first-child {
  padding-right: 0;
}
.tabs ul.secondary li a {
  display: inline;
  padding: 0.25em 0.5em;
  text-decoration: none;
}
.tabs ul.secondary li a.is-active {
  background: #f2f2f2;
  border-bottom: none;
  border-radius: 5px;
}