.mwt-section-header {
  position: relative;
}

.mwt-section-header h3 {
  display: inline;
  z-index: 9;
  background: #fff;
  padding-right: 20px;
}

.mwt-section-header .line {
  position: absolute;
  width: 100%;
  height: 1px;
  background: black;
  top: 18px;
}