html sub, sup tags create product price tags in e-commerce websites. <!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=gb2312 /><title>sub and sup tags in html</title></head><style type=text/css>body { font:12px/1.8 tahoma}span.price { font-family:arial, helvetica, sans-serif; font-size:16px; font-weight:700; color:red;}span.price sub { vertical-align:baseline; font-size:12px;}span.price sup { vertical-align:text-bottom; color:#555}</style><body><span class=price><sup>¥</sup>43.<sub>26</sub></span></body></html> [ctrl+a All selection tips: You can modify some code first, and then press Run]