Target attribute

Justify content and align-items in depth Css specificity

Meta tags

Semantic tags

Input types

Iframe

Pseudo elements

Flexbox

Z-index

Position: relative

Display: none

Differences between HTML and XHTML

Difference between the <nav> and <ul> elements

Web Storage

A tag

Attributes

Box model in CSS

Difference between inline and inline-block display styles

Handle browser compatibility issues in CSS

Concept of flexbox layout

Difference between display: none and visibility: hidden

Selectors priority

Flex properties

Overflow

Viewport

Pseudo classes

Code comment

Diff between Html & HTML5

Inline elements & block elements

Explore dev tools & keyframes

Em vs rem

Features of HTML5

Doctype

Combinators

Pseudo classes vs pseudo elements

Attribute selector

Box sizing

Absolute vs relative units