.breadcrumb {
  margin-top: 80px;
  display: flex;
  justify-content: left;
  align-items: center;
  width: 100%;
  height: 50px;
  padding-left: 16px;
  background-color: #FFFFFF;
}

.breadcrumb li {
  display: inline;/*横に並ぶように*/
  list-style: none;
}

.breadcrumb li:after {/* >を表示*/
  content: '>';
  padding: 0 0.2em;
  color: #73A776;
}

.breadcrumb li:last-child:after {
  content: '';
}

.breadcrumb li a {
  text-decoration: none;
  color: #73A776;/*色*/
}
.breadcrumb a {
  position: relative;
  display: inline-block;
  text-decoration: none;
}
.breadcrumb a::after {
  position: absolute;
  bottom: 2px;
  left: 0;
  content: '';
  width: 100%;
  height: 1px;
  background: #73A776;
  transform: scale(0, 1);
  transform-origin: center top;
  transition: transform .4s;
}
.breadcrumb a:hover::after {
  transform: scale(1, 1);
}