Work on the CMS Contao TZ

Work is required on CMS Contao. Example work plan:
1. Under the phone in the header on the pages should be a link or button to order a callback, the form of a callback on the site is.
2. Make a pleasant background of the site, it will go on the sides and in the header of the site.
3. To deal with buttons on the social network, they are in frequent questions on each page, now some buttons are likes, and some make a repost on the wall of a person with a link to the site, you will need to bring everything to one option, or it is possible that there are likes and reposts.
4. There are reviews on the main one, I will need to add a couple more, I will write reviews myself.
5. It is necessary to highlight the syntax in the text editor in the admin, the code highlighting should be in the style of 1C