Browser detection for Internet Explorer on the Mac

Quite simply, IE on the Mac does strange things with CSS. The browser's become somewhat obsolete as Microsoft aren't going to be bringing out an updated version. As such, many web developers code their CSS-driven sites so that the site works in IE/Mac, although it may not offer the same level of advanced functionality or design. Provided IE/Mac users can access all areas of the site this is seen as a suitable way of doing things.
To hide a command using the IE/Mac CSS hack4 is simple, and involves wrapping a set of dashes and stars around as many CSS rules as you like:
/* Hide from IE-Mac \*/
#header {margin-bottom: 3em;}
#footer {margin-top: 1.5em;}
/* End hide */
IE/Mac will simply ignore all these commands. This CSS hack can actually be quite useful if there's a certain area of the site not working properly in IE/Mac. If that section isn't fundamental to being able to use the site, you can simply hide it from IE/Mac like so:
#noiemac {display: none}

/* Hide from IE-Mac \*/
#noiemac {display: block;}
/* End hide */
The first CSS rule hides the entire section assigned the noiemac id (i.e. div id="noiemac">). The second CSS rule, which IE/Mac can't see, displays this section.