I did complete refactoring of the website to improve results in search engines. Re-coded whole site as a WordPress theme.
I refactored all styles and HTML codes. I used semactic markups from HTML5 and Less for styling. I developed a WordPress theme which gave
the administrator full control over all sections of main page and also I prepared the site to have a blog. The theme is fully responsive.
I used many various CSS and scripts from Bootstrap.
The result of these tasks was the TOP5 in Google Search Engine and it still gets better.