In the development of XOOPS official forum newbb, the PNG format is used for BUTTON and other graphics. Since the IE browser is not supported by PNG, the transparent attribute is not good, the development group uses the famous
Justin Koivisto Hack:
transparent problem Solved, but the client speed became a big problem. This Filter greatly reduces the browser display speed. It took more than a month to optimize the newbb2, the server-side can be used, IE is still slow. So I have to use a compromise, add an option, select the PNG type according to the browser type or GIF type
Continue to find the processing of PNG under IE ... BTW: There is also a CSS JS method, and its core is still using this filter, there is still a speed problem.
