Frontend engineers at Salesforce please help!!!

Hi I am going through interviews for MTS Frontend (Design system team) at Salesforce. Got done with initial screening and assignment. Now I have 2 rounds remaining. Round 1 - Focus areas are HTML/Dom/CSS and Styling

Round 2 - Focus areas are JS, A11y, Web performanceWeb application level questions

I have 2 days from now. Suggest me what to expect in interview and what to prepare. Round 1 topics seems easy but scared bexause they are easy. Not sure if they would go for machine coding or just ask verbal questions. Please help!!!