<style>
.container {
  width: 100px;
  color: green;
  font-family: Ahem;
  font-size: 50px;
}
.inline {
  display: inline-block;
  width: 50px;
  height: 50px;
  background-color: blue;
}
img {
  width: 50px;
  height: 50px;
  background-color: green;
}
</style>
<div class=container><div class=inline></div><div class=inline style="background-color: green"></div></div>
<div class=container><div class=inline></div><img></div>
<div class=container><div class=inline></div><span style="vertical-align: top">X</span></div>