.tabs-left {
  border-bottom: none;
  border-right: 1px solid #ddd;
  background-color:#C10000;
}

.tabs-left>li {
  float: none;
 margin:0px;
 
 color:#fff;
  
}

.tabs-left>li.active>a,
.tabs-left>li.active>a:hover,
.tabs-left>li.active>a:focus {
  border-bottom-color: #ddd;
  border-right-color: transparent;
  background:#f90;
  border:none;
  border-radius:0px;
  margin:0px;
}
.nav-tabs>li>a:hover {
    /* margin-right: 2px; */
    line-height: 1.42857143;
    border: 1px solid transparent;
    /* border-radius: 4px 4px 0 0; */
}
.tabs-left>li.active>a::after{content: "";
    position: absolute;
    top: 10px;
    right: -10px;
    border-top: 10px solid transparent;
  border-bottom: 10px solid transparent;
  
  border-left: 10px solid #f90;
    display: block;
    width: 0;}