You can configure the compass default browser support matrix by setting these variables as needed.
This file can be imported using:
@import "compass/support"
true
Usually compass hacks apply to both ie6 & 7 -- set this to false to disable support for both.
$legacy-support-for-ie
Setting this to false will result in smaller output, but no support for ie6 hacks
$legacy-support-for-ie
Setting this to false will result in smaller output, but no support for ie7 hacks
$legacy-support-for-ie
Setting this to false will result in smaller output, but no support for legacy ie8 hacks
true
Support for mozilla in experimental css3 properties (-moz).
true
Support for webkit in experimental css3 properties (-webkit).
true
Support for webkit's original (non-standard) gradient syntax.
true
Support for opera in experimental css3 properties (-o).
true
Support for microsoft in experimental css3 properties (-ms).
false
Support for khtml in experimental css3 properties (-khtml).
false
Support for svg in experimental css3 properties. Setting this to true might add significant size to your generated stylesheets.
false
Support for CSS PIE in experimental css3 properties (-pie).
true
Whether to output legacy support for mozilla. Usually this means hacks to support Firefox 3.6 or earlier.