4 <style type=
"text/css">
7 width: 100px; height: 100px;
8 background-color: blue
;
17 background-color: green
;
22 <div id=
"float"></div>
23 <div id=
"clear"></div>
24 <div id=
"separator"></div>
25 There should be gap between the blue square and the green rectangle.