Although the bootstrap tabs are functioning well, users are requesting that I increase the thickness of the borders. However, whenever I try to make the border thicker than 1px, an extra line appears on the bottom border of the active tab. I attempted to adjust the thickness of the bottom border on the active tab, but the additional line persists.
.nav-tabs {
border-bottom: 3px solid #DDDDDD;
/* it works with 1px */
}
.nav-tabs > .active > a {
border-bottom: 3px solid #FFFFFF;
/* it works with 1px */
}
You can observe the issue in action in the following fiddle : http://jsfiddle.net/jerrykur/FEuC3/