Theme customization

Hai everyone.,

I am new to drupal. I am workig with TB University premium theme., I have to include some section regarding my design., I don’t know where to start? This is the link of the theme which i am working ….. I have to make it like this one (sample of my design).., please suggest me how to include sections and where to write css rules for it.., please replay whether i can create as same site or not? please replay..,

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