The text explores advanced CSS techniques designed to enhance web design and development skills in 2021. It covers various methods such as responsive CSS grids, background-repeat properties, and CSS masking, which allow for dynamic and visually appealing web pages. Techniques like zoom on hover, scroll snapping, shape outside, and variable fonts are highlighted for their ability to improve user experience and design flexibility. The text discusses logical properties and values, CSS subgrids, and vertically aligning with Flexbox to facilitate more efficient layout management. SVGs and smart quotes are recommended for their scalability and readability benefits, while feature queries help ensure browser compatibility. The tutorial encourages experimentation with these techniques to create engaging and browser-compatible websites and concludes by inviting readers to share their own tips and insights.