4 background-color: pink;
5 outline:
1px solid black;
9 background-color: grey;
12 margin:
10px
20px
30px
40px;
16 <div>The four boxes below should look identical.
</div>
18 <div class=
"container">
19 <div class=
"box"></div>
22 <div class=
"container">
23 <div class=
"box"></div>
26 <div class=
"container">
27 <div class=
"box"></div>
30 <div class=
"container">
31 <div class=
"box"></div>