Untitled

<h1>Technique</h1>

h1 {

  overflow: hidden;

  padding-left: 2em;

}

h1:before,

h1:after {

  content: " ";

  display: inline-block;

  border-bottom: 2px solid;

  position: relative;

  vertical-align: middle;

  width: 50%;

}

h1:before {

  right: 0.5em;

  margin-left: -50%;

}

h1:after {

  left: 0.5em;

  margin-right: -50%;

  width: 100%;

}