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CSS clearing, also known as css reset, is a technique often used by developers to override a web browser's default style sheet. By resetting the default styles, developers can create their own style sheets to ensure their sites appear consistently across all browsers. This article will teach you all about CSS cleanup to make you a better web developer.
Web browsers provide a default style sheet to determine how HTML elements are displayed. However, these default styles may vary by browser type and version, causing your page to appear differently on different browsers. To solve this problem, developers often use CSS cleanup so that they can use the same styles across all browsers.
CSS Clear is essentially a set of CSS rules that resets all default styles such as font color, background color, line height, etc. By using CSS cleanup, developers can override browser default styles to maintain a consistent look and feel across all browsers.
There are two main types of CSS cleanup: the traditional CSS reset and the more recent new CSS reset.
2.1 Traditional CSS reset
The traditional CSS reset clears the default browser style sheet by setting the margin and padding of all elements to zero. Any other styles applied directly to these elements will override the CSS reset style. The traditional approach often means developers need to build their styles from scratch and maintain consistent styles across the entire website.
2.2 New CSS Reset
The recent new CSS reset also resets the default styles of all elements, but unlike the traditional method, these new styles do not change the margin and margin of all elements. padding is set to zero. Instead, they only reset basic element properties such as font size, text alignment, and line height. These new styles are designed to be a more lightweight, extensible method that allows you to apply specific styles to your website.
The following is a typical CSS reset:
* { margin: 0; padding: 0; box-sizing: border-box; }
This CSS code uses a universal selector*
to select all elements and set their margin and padding to zero. It also uses the box-sizing
property to ensure that the box model is always in border mode. This means that when you set border
and padding
for an element, the actual width of the element does not increase.
The following is an example of a CSS reset:
html { font-size: 62.5%; } body { font-size: 1.6rem; line-height: 1.6; } h1, h2, h3, h4, h5, h6 { font-weight: bold; margin: 1.5rem 0; } p { margin: 1rem 0; }
In this example, we reset some basic element properties, such as font size and line height. We also set some styles for the heading element and paragraph element. These styles do not completely reset the style of the element, but provide some basic styles that allow developers to build their own styles from these basic styles.
The advantage of using CSS Clearing is that it allows you to have more control over the look and feel of your website. If all default styles are not reset, you may see the page rendering differently on different browsers. Using CSS cleanup, you can ensure that your website renders the same way on all browsers, making your website more predictable and consistent.
However, there are some disadvantages to using CSS cleanup. First, using CSS cleanup may increase the size of your code, making your files larger and therefore longer to load. Additionally, using CSS cleanup may break the default behavior of certain elements, such as links and form controls, and you will need further styling to fix these issues.
CSS cleanup is a useful technique that can help you create a consistent website across different browsers. While there may be some drawbacks to using CSS cleanup, it is still a powerful development tool. Whether you're using a traditional CSS reset or a newer CSS reset, just make sure you stay consistent in your styling throughout your website and you'll be able to build a website that has a professional look and feel.
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