<div class="container">
  <div class="wrapper">
    <div class="text">custom text custom text</div>
  </div>

  <div class="wrapper">
    <div class="text">custom text custom text custom text</div>
  </div>

  <div class="wrapper">
    <div class="text">custom text custom text custom text custom text</div>
  </div>
</div>
body {
  margin: 0;
}

.container {
  background-color: #333;
  display: flex;
  flex-direction: column;
  justify-content: center;
  height: 100vh;
}

.wrapper {
  display: flex;
  padding: 1rem 0;
}

.wrapper:before {
  content: '';
  flex: 1 0 auto;
}

.wrapper:after {
  content: '';
  flex: 1 0 auto;
  background: #322;
}

.text {
  flex: 0 0 auto;
  background: #322;
  color: white;
}

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

This Pen doesn't use any external JavaScript resources.