ositioning the float: the 'float' property"/>
 </head>
 <body>
  <p>The big coloured boxes should be level with the top of the small
  coloured boxes of the same color (unless there is not enough room
  for the big box to fit on the small box's line after the small box,
  in which case the big box should be level with the bottom of the
  respective small box).</p>
  <div>
   dummy text dummy text dummy text dummy text dummy text dummy text
   <span class="a">A</span>
   <p class="a">AAAA</p>
   dummy text d