If CSS selectors are identical, the browser combines their properties.Adding the !important value to a CSS style overrides everything.Inline CSS coded into an HTML tag override ID, class, and tag CSS.CSS ID selectors (with #) override class references.CSS tag selectors (matching the HTML tag) override browser defaults.Without CSS, the HTML will be displayed according to the browser’s default styles.In choosing what CSS styles to apply to an HTML element, specificity overrides generality according to a cascading set of rules that settle conflicts between styles: Every other rule from 'steps' before are 'kept'. You won't remove font-weight: bold using: Why bother using 'cascade' word in this case that represents waterfall with rocks? Because when the water falls it TAKES everything with itself down to the bottom.īecause if you put inside sample.html in external CSS file also: p

That's why your paragraph is 'blue' not 'red'. Inside sample.html you have a link to external CSS file (step 2), where you put selector and a rule like below: pĪnd in the same time in the head tag of sample.html, you put: Īccording to 'cascade' the lowest step is step nr 3. Whatever rule is below overrides what is above. Because these are on the 'lowest' place of 'waterfall'. 'Cascade' algorithm chooses the 'step' that is the lowest as the most important. The simplified (there is more to that) order is: When the water falls from one rock to another 'downwards' then it's not possible to go back with water 'up'. Now imagine that every step is representing a differently placed rule that can apply style to your HTML. It's the one that has steps that consists of rocks.

Cascade is a pretty rarely used word and that's why it's problematic to understand the 'C' in CSS.Ĭascade word means waterfall. Every rule from style sheets participate in a 'war' that is similar to cascade.

Meaning of sylo