/* hack para crear rayita abajo del header de Google Book */
/*Opera */
@media all and (min-width: 0px){
#leftSearchControl .gsc-tabsArea {
  border-bottom: 5px solid #217ABE; /* cambie*/
  }
} 

.gsc-tabHeader.gsc-tabhInactive {/* lo cambie*/
  border-left: 1px solid #b6d0e4;
  border-right: 1px solid #b6d0e4;
  border-top: 2px solid #b6d0e4;
  background: #b6d0e4;
  color: #fff;
  font-weight: bold; 
  }