float inline block becomes block of multiline inline box
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html> <head> <title></title> <style type='text/css'> div { margin: 10px; background: gold; height: 100px; } span#floated { background: pink; margin: 10px; padding: 10px; border: 1px solid black; float: left; width: 100px; } span#normal { background: red; border: 1px solid black; padding: 20px; margin: 20px; } </style> </head> <body> <div> <span id='floated'> This span is floated left. </span> <span id='normal'> The text of this span is beside the floated span. The text of this span is beside the floated span. The text of this span is beside the floated span. The text of this span is beside the floated span. The text of this span is beside the floated span. The text of this span is beside the floated span. The text of this span is beside the floated span. </span> This is extra text. </div> </body> </html>