As you known, some CSS styles are used very frequently. For example, display:none - the most commonly used method for hiding elements, visibility:hidden - a very useful method for hiding elements, and so on.

Actually, zxx.lib.css is a collection of these styles. It includes display, margin, padding, color(web safe color), font refer, vertical-align, float, ..., and many other common styles. In addition to these styles, some group styles that I think useful are also in.

All the names of the CSS in zxx.lib.css are short names. For example, .dn instead of display:none, .db instead of display:block, ...

I recommend that zxx.lib.css should put behind after other CSS file! As shown below:

<link href="a.css" rel="stylesheet" />
<link href="b.css" rel="stylesheet" />
<link href="zxx.lib.css" rel="stylesheet" />

What's this?