13 <div>The four boxes below should look identical.
</div>
15 <div class=
"container">
16 <div class=
"box"></div>
19 <div class=
"container">
20 <div class=
"box"></div>
23 <div class=
"container">
24 <div class=
"box"></div>
27 <div class=
"container">
28 <div class=
"box"></div>