/* bootstrap hack: fix content width inside hidden tabs
   http://stackoverflow.com/a/23267110/2132223
 */
.tab-content > .tab-pane,
.pill-content > .pill-pane {
    display: block !important; /* undo display:none          */
    height: 0;                 /* height:0 is also invisible */ 
    overflow-y: hidden;        /* no-overflow                */
}
.tab-content > .active,
.pill-content > .active {
    height: auto;              /* let the content decide it  */
} /* bootstrap hack end */