css style remove style

CSS style Removing or resetting styles is a commonly used technology in front-end development. Especially when we need to customize the style of the front-end framework, CSS style removal has become an indispensable technology.

First of all, we need to clarify a concept: the priority of CSS styles. The CSS priorities from high to low are: !important > Inline style > ID > Class, attribute, pseudo-class > Tag name > Inherited style. Therefore, if we want to override or remove the style of an element, we need to take appropriate actions based on its priority.

The following are some common CSS style removal tips:

1. Use wildcards

The wildcard (*) can match any element, if we set the wildcard Style, which will override the style of all elements. For example:

* { margin: 0; padding: 0; }

The above code clears the margin and padding of all elements, thereby removing the default style.

2. Reset Style

Since different browsers have different default styles for elements, we can use "Reset Style Sheet" to clear these default styles. Commonly used reset style sheets include normalize.css, reset.css, etc. We can reference these style sheets to achieve the purpose of resetting the style.

3. Use !important

!important can increase the priority of the CSS style to the highest level, thereby ensuring that its style can override other styles. For example:

body { background-color: red !important; }

The above code will set a red background color to the body element, and use !important to ensure that this style can override other styles.

4. Using specific selectors

If we want to clear the style of an element, we can use a specific selector to override it. For example:

a { color: blue; } a.custom { color: black; }

The above code sets the color of the hyperlink to blue, but if we want the color of a certain hyperlink to be black, we can add class="custom" to the a tag to use A specific selector overrides the style of a tag.

5. Using inherited styles

Inherited styles means that an element inherits styles from its parent element. If we want to remove styles from child elements, we can override the inherited styles by setting styles on the child elements. For example:

.parent { color: red; } .child { color: black; }

The above code sets the color of the parent element to red and makes the color of the child element black, thus overriding the inherited style.

In short, removing or resetting CSS styles is an essential technology in front-end development. We need to choose the appropriate technique according to the situation to achieve the purpose.

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