Which of the following is true about CSS specificity?

CSS specificity is a system that determines which styles are applied to an element when conflicting styles are defined. The statement about more specific rules overriding less specific ones accurately captures the core principle of how specificity works in Cascading Style Sheets.

When multiple CSS rules are applied to the same element, the browser needs a way to decide which rule to apply. Specificity comes into play here: if two conflicting styles apply to the same element, the one with the higher specificity takes precedence. This means that styles applied directly on an element (inline styles) will override styles defined in a style sheet, and ID selectors will override class selectors, illustrating the hierarchical nature of specificity.

Understanding this hierarchy is crucial for effectively managing styles and ensuring the desired styling is consistently applied. The other options inaccurately describe the specificity hierarchy, where inline styles indeed have a higher specificity than embedded styles, ID selectors have a higher specificity compared to class selectors, and element selectors have the lowest specificity. This makes the statement regarding the override principle the only accurate reflection of CSS specificity.