Hi there,
In Gantry template you will find the original sizes in variables.less file...
@white: #ffffff;
@black: #000000;
@light-grey: #cccccc;
/* Variable for RT icons.less mixin */
//@iconSpritePath: "../images/sprite.png";
@baseFontSize: 14px;
@baseLineHeight: 20px;
The majority of settings are either % or em using the @baseFontSize as the starting point.
You could create either a custom css or custom less file.
As GANTRY4 now incorporates LESS. There are two recommended methods for dealing with your custom changes to the template.
1. For older templates (pre FRACTURE
LESS compiler is not active), or for those of you that want to stick with traditional CSS, you can simply create a file called "<TEMPLATENAME>-custom.css" and put this file in the CSS folder of the template (where TEMPLATENAME is the name of the template e.g. rt_fracture). GANTRY4 will automatically load this CSS file. you can also have browser specific files by appending, for example, "-ie9" making the filename "<TEMPLATENAME>-custom-ie9.css"
2. For those of you that want to use the power of
LESS (compiled CSS), you can simply create a file called "template-custom.less" (that is the file name - don't change it) and put this file in the less folder of the template. Now clear your cache GANTRY4 will automatically detect this file and automatically compile the LESS code therein and put it into the compiled css for your site (along with the other compiled LESS files from the template). Note that you can just put ordinary CSS in a LESS file but you are strongly encouraged to learn more about LESS as it will speed up your development and make it clearer.
Do not change the CSS files in the compiled-css folder as these changes will be lost whenever Gantry 4 detects a change in a LESS file, or the cache gets cleared.
For more information on LESS please see the documentation on Gantry 4 at
http://www.gantry-framework.org/documentation/joomla/advanced/less-css
. Also, see this tutorial
http://www.rockettheme.com/forum/index.php?f=662&p=860738&rb_v=viewtopic#p860738