The section tag is a class that is found next to most segments.
You can use it to combine codes together if you're making parts of your profile similar all around.
For example you can use it to make all sections such as 'profile,' 'about,' 'details,' etc. disappear, or to change the font-style, however it doesn't seem to work with all code types, so mess around with it first.
.section - changes the 'profile,' 'about,' 'details,' etc. sections universally.
.section h2 - changes the headers of the 'profile,' 'about,' 'details,' etc. sections.
*Note - "h2" is another one of those html codes. In this case it is only used for all the interior segments 'profile,' 'about,' 'details,' etc.