Hi @Sohan2198
The Dawn theme does not inherently include a tab element, so you need to code it yourself. This can be quite challenging, requiring at least a good understanding of HTML, CSS, and Liquid, you can refer this article https://community.shopify.com/c/shopify-design/how-to-add-tabs-in-dawn-theme-under-the-product-description/m-p/1458169 or else you might need to hire a developer to code it for you, as it involves writing at least 50 lines of code. If you are not confotable with this option, another option is to switch to a theme that includes a tab element (e.g., Impulse or Empire theme). Alternatively, you can use a page builder to create this tab section. With a page builder, you can simply drag and drop elements, customize colors, and then add that section to your theme effortlessly.
Hope it helps!