div显示的问题。
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>无标题文档</title></head><body><div style="width:200px"><div style="float:left;">aaaa aaaaa aaaa aaaaa aaa a aaa a aa aaa aaa aaa aaa aa aaa aaaaaa aa aaa</div><div style="float:left;">bbbb</div></div></body></html>
