// <div class="flex-grid">
//   <div class="col"></div>
//   <div class="col"></div>
//   <div class="col"></div>
// </div>

.flex-grid {
  display: flex;
}
.col {
  flex: 1;
}

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

.flex-grid-thirds .col {
  width: 32%;
}