CSS Filters On Images

Alpha:

Gray:

Invert:

Xray:

Normal：

CODE：

Alpha:
<div style="filter: alpha(opacity=20)"><img src="http://images.cnblogs.com/cnblogs_com/SkySoot/373350/r_lang.gif" /> </div>
Gray:
<div style="filter: gray()"><img src="http://images.cnblogs.com/cnblogs_com/SkySoot/373350/r_lang.gif" /> </div>
Invert:
<div style="filter: invert()"><img src="http://images.cnblogs.com/cnblogs_com/SkySoot/373350/r_lang.gif" /> </div>
Xray:
<div style="filter: xray()"><img src="http://images.cnblogs.com/cnblogs_com/SkySoot/373350/r_lang.gif"/> </div>
Normal：
<div src="http://images.cnblogs.com/cnblogs_com/SkySoot/373350/r_lang.gif"/></div>