How to clear inherited styles in CSS

In the field of web design, CSS (Cascading Style Sheets) is usually used to control web page layout and style. The benefit of CSS is that you can increase efficiency by applying rules to multiple elements, and you can define multiple rules for each element. However, a problem arises when multiple rules are applied to the same element: inherited CSS. That is, an element inherits some styles from its parent element, and these styles may not be rendered on the page as we expect.

In this article, we will discuss how to clear inherited CSS and introduce some solutions.

1. Using !important

!important is a priority statement in CSS rules. This can be added to a rule to override other rules that apply to the same element. Be very careful when using !important as it may have adverse effects on your code and maintenance. We only recommend using !important when necessary.

For example, if you want to clear the inherited color style of the h1 element, you can add the following rule in CSS:

h1{
color: black!important;
}

This will remove the color style from the h1 element and set it to black.

2. Using universal selectors

The universal selector (*) is a CSS rule that can select all elements. You can use a universal selector to clear inherited styles and apply specific styles to all elements.

For example, if you wanted to clear the inherited font style of all paragraph elements and set their font style to "Helvetica", you would use the following rule:

*{
font-family: Helvetica;
}

This will clear the inherited styles of all paragraph elements and set their font style to Helvetica.

3. Use id and class

Use id and class to define unique styles and identifiers for elements in CSS, avoiding the impact of styles applied to other elements. In CSS, both id and class have different syntax formats.

For example, if you want to clear the inherited styles on a div element with the id "sidebar" and set its background color to gray, use the following rules:

sidebar{

background-color: gray;
}

This will clear the inherited styles of the div element with id "sidebar" and set its background color to gray.

If you want to clear the inherited styles of all ul elements with class "menu" and set their font style to Verdana, use the following rules:

ul.menu{
font-family: Verdana;
}

This will remove inherited styles from all ul elements with class "menu" and set their font style to Verdana.

4. Reset Style Sheet

Style reset is a common method for standardizing CSS styles between different browsers. This isn't a complete cleanup of inherited styles, but it creates a whole new set of rules in CSS so you can control the appearance and style of each element.

A popular CSS reset framework is Reset CSS, which sets the default styles of all elements to zero and provides custom styles for each element. You can easily use Reset CSS in your projects to avoid style inconsistencies between browsers and design pages from scratch.

Conclusion

Clearing inherited CSS is an important issue in web design. By using methods such as important, universal selectors, ids and classes, and the style reset framework, you can easily manage CSS styles in your web pages to always present the best appearance and performance.

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