<div class="flex-container">
  <div class="flex-item">
    1Curabitur ac vestibulum mi
  </div>
  <div class="flex-item">
    2In viverra dapibus
  </div>
</div>

.flex-container {
  display: flex;
  justify-content: space-between;
  }

/* Decorations
-------------------- */
BODY {
  padding: 20px;
  background: white;
  }
.flex-container {
  padding: 10px;
  background: gold;
  border-radius: 10px;
  }
.flex-item {
  margin: 10px;
  padding: 5px;
  background: tomato;
  border-radius: 5px;
  border: 1px solid #FFF;
  }