.section css changes

dear congthien,

i have an issue with following:

i am trying to change behaviour of a.hover etc. under custom section.
i have added several custom sections and in some of the sections, i need to customize the link color. is there a way how i can change in for example .section-example to change the p, h, a.hover individually?

mysite is http://www.stop-x.de
i am trying to change color behaviour on some font awesome button and text, as they do not match with background color/image.

thanks so much again for your tremendous support!!!