Website Designing For Support Page

We want to Create a Support Website page of our thinkagent (https://app.thinkagent.com/). So we need a experience java script guy. The colour & Design will be same as Thinkagent website.
E.g.
• https://help.salesforce.com/s/?language=en_US
https://support.google.com/
https://www.linkedin.com/help/linkedin?lang=en