CSS

.breadcrumbCustom {
  display: inline-block;
  box-shadow: 0 0 15px 1px rgba(0, 0, 0, 0.35);
  overflow: hidden;
  border-radius: 5px;
  counter-reset: flag; 
}

.breadcrumbCustom a {
  text-decoration: none;
  outline: none;
  display: block;
  float: left;
  font-size: 12px;
  line-height: 36px;
  color: white;
  padding: 0 10px 0 60px;
  background: #666;
  background: linear-gradient(#666, #333);
  position: relative;
}
.breadcrumbCustom a:first-child {
  padding-left: 46px;
  border-radius: 5px 0 0 5px; 
}
.breadcrumbCustom a:first-child:before {
  left: 14px;
}
.breadcrumbCustom a:last-child {
  border-radius: 0 5px 5px 0; 
  padding-right: 20px;
}

.breadcrumbCustom a.active, .breadcrumb a:hover{
  background: #333;
  background: linear-gradient(#333, #000);
}
.breadcrumbCustom a.active:after, .breadcrumb a:hover:after {
  background: #333;
  background: linear-gradient(135deg, #333, #000);
}


.breadcrumbCustom a:after {
  content: '';
  position: absolute;
  top: 0; 
  right: -18px; 
  width: 36px; 
  height: 36px;
  transform: scale(0.707) rotate(45deg);
  z-index: 1;
  background: #666;
  background: linear-gradient(135deg, #666, #333);
  box-shadow: 
    2px -2px 0 2px rgba(0, 0, 0, 0.4), 
    3px -3px 0 2px rgba(255, 255, 255, 0.1);
  border-radius: 0 5px 0 50px;
}

.breadcrumbCustom a:last-child:after {
  content: none;
}
.breadcrumbCustom a:before {
  content: counter(flag);
  counter-increment: flag;
  border-radius: 100%;
  width: 20px;
  height: 20px;text-align: center;
  line-height: 20px;
  margin: 8px 0;
  position: absolute;
  top: 0;
  left: 30px;
  background: #444;
  background: linear-gradient(#444, #222);
  font-weight: bold;
}
.flat a, .flat a:after {
  background: white;
  color: black;
  transition: all 0.5s;
}
.flat a:before {
  background: white;
  box-shadow: 0 0 0 1px #ccc;
}
.flat a:hover, .flat a.active, 
.flat a:hover:after, .flat a.active:after{
  background: #9EEB62;
}