.custom-enov-btn 
{
  width: auto;
  height: 45px;
  line-height: 45px !important;
  border: none;
  display: inline-block;
}
.custom-enov-btn span {
  position: relative;
  display: block;
  width: 100%;
  height: 100%;
  text-align: center;
  padding: 0px 20px;
  white-space: nowrap;
}
.custom-enov-btn:before,
.custom-enov-btn:after {
  position: absolute;
  content: "";
  right: 0;
  bottom: 0;
  background: #000;
  transition: all 0.3s ease;
}
.custom-enov-btn:before {
  height: 50%;
  width: 2px;
}
.custom-enov-btn:after {
  width: 20%;
  height: 2px;
}
.custom-enov-btn:hover:before {
  height: 100%;
}
.custom-enov-btn:hover:after {
  width: 100%;
}
.custom-enov-btn span:before,
.custom-enov-btn span:after {
  position: absolute;
  content: "";
  left: 0;
  top: 0;
  background: #000;
  transition: all 0.3s ease;
}
.custom-enov-btn span:before {
  width: 2px;
  height: 50%;
}
.custom-enov-btn span:after {
  width: 20%;
  height: 2px;
}
.custom-enov-btn span:hover:before {
  height: 100%;
}
.custom-enov-btn span:hover:after {
  width: 100%;
}

@media screen and (max-width: 600px)
{
  .custom-enov-btn 
  {
    height: 40px;
    line-height: 40px !important;
  }
  .custom-enov-btn span 
  {
    padding: 0px 10px; 
  }
}