.title-line {
  position: relative;
  z-index: 1;
  text-transform: uppercase;
  margin-bottom: 25px;
}
.title-line:before {
  border-top: 2px solid #dfdfdf;
  content:"";
  margin: 0 auto;
  position: absolute;
  top: 50%; left: 0; right: 0; bottom: 0;
  width: 80%;
  z-index: -1;
}
.title-line span { 
  background: #fff; 
  padding: 0 15px; 
}