<style>
div {
  color: transparent;
  font-family: Ahem;
  font-size: 20px;
}

.inline-block {
  display: inline-block;
  min-height: 50px;
  border-left: 50px solid blue;
  border-right: 100px solid green;
}
</style>

<div><div class=inline-block style="width: 200px;"></div></div>
<div><div class=inline-block style="width: 200px;">X</div></div>
<div><div class=inline-block style="box-sizing: border-box; width: 200px;">X</div></div>
<div><div class=inline-block style="box-sizing: border-box;">X</div></div>
<div><div class=inline-block style="box-sizing: border-box;">X</div></div>
<div><div class=inline-block style="box-sizing: border-box; width: 20px;">X</div></div>