I am using \'Read the Docs\' Sphinx theme for my documentation. In the original theme, given below
http://read-the-docs.readthedocs.org/en/latest/theme.html
To make the ReadTheDocs theme use the entire width of your screen you can modify the theme.css file, removing the max-width: 800px; property from the wy-nav-content class definition, like so:
.wy-nav-content {
padding: 1.618em 3.236em;
height: 100%;
/* max-width: 800px; */
margin: auto;
}
Source of theme.css is here:
https://github.com/rtfd/readthedocs.org/blob/master/media/css/sphinx_rtd_theme.css
On your filesystem it will be in (assuming you've run:pip install sphinx_rtd_theme):
lib/python2.7/site-packages/sphinx_rtd_theme/static/css/theme.css
To find the absolute path of theme.css on Linux/Mac you can run this on the command line (assuming you have set your $PYTHONPATH environment variable):
for p in `echo $PYTHONPATH | tr ":" "\n"`; do
find $p -type f -name 'theme.css' | grep sphinx_rtd_theme
done
The theme.css file will be minified so you can use a tool like http://unminify.com to make it easier to read.

