<div class="items">
  <div class="item1">Item One</div>
  <div class="item2">Item Two</div>
  <div class="item3">Item Three</div>
  <div class="item4">Item Four</div>
</div>
<hr>

<div class="parts">
  <div class="part1">Part One</div>
  <div class="part2">Part Two</div>
  <div class="part3">Part Three</div>
  <div class="part4">Part Four</div>
</div>

.items{
  display:grid; 
  
}
.parts{
  display: flex;
  padding 10px;

}