Responsive HTML/CSS Corporate Site

I already have wireframes and visual mock-ups ready and now need them turned into a lean, standards-compliant corporate website. The build is pure HTML5 and CSS3, making thoughtful use of Flexbox and Grid so the layout fluidly adapts from desktop down to the smallest mobile screen... (Budget: ₹37500 - ₹75000 INR, Jobs: CSS, HTML, Web Development, Website Design, Website Development, Website Optimization)