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CSS_Cross_Browser_Rules_of_Thumb.markdown #

CSS Cross-Browser Rules of Thumb

This is a list what CSS changes that may or may not be cross-browser compatible. If a CSS change is unsafe, you will need to check it across all browsers.

Safe:

-padding
-margin

Unsafe:

-float
-position
-z-index
-text-indent
-cursor
-font-size em's without base size
-negative margins
-ul, h(n), p, fieldset, dl without reset