<div style="display: flex;">
  <div class="container">
    <div class="box1" style="background: red;">box1</div>
    <div class="box1" style="background: green;">box1</div>
    <div class="box1" style="background: purple;">box1</div>
  </div>
  
  <div class="container" style="margin-left: 30px;">
    <div class="box2" style="background: red;">box2</div>
    <div class="box2" style="background: green;">box2</div>
    <div class="box2" style="background: purple;">box2</div>
  </div>

  <div class="container" style="margin-left: 30px;">
    <div class="box3" style="background: red;">box3</div>
    <div class="box3" style="background: green;">box3</div>
    <div class="box3" style="background: purple;">box3</div>
  </div>
  
    <div class="container" style="margin-left: 30px;">
    <div class="box4" style="background: red;">box4</div>
    <div class="box4" style="background: green;">box4</div>
    <div class="box4" style="background: purple;">box4</div>
  </div>
</div>

.container {
  outline: solid;
  height: 300px;
  width: 100px;
}

.box1 {
  width: 100px;
  height: 100px;
}

.box2 {
  width: 100px;
  height: 100px;
  padding: 10px;
  box-sizing: border-box;
}

.box3 {
  width: 100px;
  height: 100px;
  border: 10px solid #c4c4c4;
  box-sizing: border-box;
}

.box4 {
  width: 100px;
  height: 100px;
  border: 10px solid #c4c4c4;
  padding: 10px;
  box-sizing: border-box;
}