Wordpress CSS edit & Some PHP Code Update

Our client website has many updates and errors that needs to be fixed. Many of the issues are smaller issues that needs to be fix for instance: Sizes of certain borders, repositioning of certain parts to to the other side of the page. We need to add a slide screen that we created onto the site which already has the option to plug in. We have drawn out mock up pages for you Reference to change. You can follow the mock up pictures to see what we require to. One part of the project is to change our existing quote module with a more simpler one. This will require a little bit of web programming.