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- Understanding CSS specificity and the cascade tutorial
- When encountering the problem that the CSS style is not effective, the cascade and specificity mechanism should be given priority. The browser determines the effective style according to source and importance (user style class/attribute/pseudo-class 10 > element/pseudo-element 1 > wildcard characters, etc. 0; for example, the specificity of "div#main.content" is 111. Common misunderstandings include being covered by more specific rules, abuse of the important and high priority of in-line styles. It is recommended to avoid over-necking of selectors and keep them simple. You can use the developer tools to view Comp during debugging
- CSS Tutorial . Web Front-end 880 2025-06-29 00:43:11
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- What are media queries in CSS?
- Media query uses different styles to detect device characteristics to realize responsive design. The core is to check the screen width, height, resolution and other conditions, and apply the corresponding style when it is met, such as @media(max-width:768px) to change the font size; common uses include adjusting layout, fonts, hiding elements, etc.; when using it, you should avoid specifying specific devices, using relative units, merging the same queries, and considering window scaling adaptability.
- CSS Tutorial . Web Front-end 214 2025-06-29 00:35:41
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- CSS Blob Recipes
- Blob, Blob, Blob. What's the most effective way to create blob shapes in CSS? Turns out, as always, there are many. Let's compare them together!
- CSS Tutorial . Web Front-end 153 2025-06-28 09:46:11
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- CSS Grid template areas tutorial for beginners
- grid-template-areas are attributes in CSSGrid that are used to intuitively define layout structures. They build page layouts by naming areas and arranging these names. For example, use "headerheader" to define that both columns of the first row are header areas, then "sidebarmain" means that the second row is sidebar on the left and main on the right, and finally "footerfooter" means that the third row is all footer. To assign an area name to an element, you need to use the grid-area attribute to specify the corresponding name, such as .header{grid-area:h
- CSS Tutorial . Web Front-end 468 2025-06-28 01:46:20
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- What is the all property in CSS?
- The all attribute of CSS is an abbreviation attribute used to quickly reset or unify all styles of an element. It mainly accepts four values: unset, initial, inherit and revert. 1.all:unset will reset the style to an inherited value (if inheritable) or initial value, which is often used for component-level reset or standardization of form elements; 2.all:initial forces all attributes to restore the default initial value, suitable for scenarios where the style needs to be completely cleared; 3.all:revert falls back to the browser default style, suitable for resolving global style conflicts; 4. Pay attention to its wide impact when using it, and may remove key styles such as animation and interaction, affect accessibility and maintenance, so it should be used with caution.
- CSS Tutorial . Web Front-end 873 2025-06-28 01:45:01
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- Sass mixins and functions CSS tutorial
- Sass' mixins are used to multiplex style blocks, suitable for scenarios where structure is fixed but parameter changes; functions are used to return values, suitable for calculation or conversion. 1.Mixins outputs CSS style, suitable for browser compatibility processing, componentization and layout encapsulation; 2. Functions returns colors, numbers and other values, and does not output CSS directly; 3. It is recommended to manage mixin and function files according to function classification and introduce them uniformly; 4. Use clear naming and annotations to improve readability; 5. Use Sass built-in functions such as lighten(), percentage(), etc. to simplify development. Mastering these two can significantly improve code quality and maintenance efficiency.
- CSS Tutorial . Web Front-end 561 2025-06-28 01:44:00
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- CSS tutorial for styling buttons and links
- Tostylebuttonsandlinkseffectively,startwithbasicCSSproperties,applyhovereffects,maintainconsistency,ensureaccessibility,andoptionallyaddtransitions.Beginstylingbuttonswithpadding,backgroundcolor,bordersettings,androundedcornerstoenhanceclickabilityan
- CSS Tutorial . Web Front-end 203 2025-06-28 01:42:40
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- What is the shape-outside property used for?
- The shape-outside property of CSS is used to control how text is arranged around elements, allowing custom shapes such as circles, ellipses, polygons, or image outlines to make text bypass these shapes instead of the default rectangular box. 1. It is mainly used for floating elements and needs to be used with float; 2. It supports shape functions such as circle(), ellipse(), inset() and polygon(); 3. It can adjust the spacing between text and shapes with margin; 4. Use browser developer tools to preview the shape area; 5. The impact of old browser compatibility and image transparency on shapes must be considered.
- CSS Tutorial . Web Front-end 990 2025-06-28 01:40:41
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- How do you perform a case-insensitive attribute match with CSS Selectors?
- Standard CSS selectors do not support direct case-insensitive property matching, but can be implemented by combining multiple selectors or using the :is() pseudo-class. The article proposes three methods: 1. Explicit matching by listing all possible case forms such as [data-type="product"] and [data-type="Product"]; 2. Use the simplified syntax of the pseudo-class to improve readability, such as: is([data-type="product"],[data-type="Product"]); 3. For dynamic content, you can use the help of
- CSS Tutorial . Web Front-end 600 2025-06-28 01:40:20
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- CSS tutorial for responsive design
- The key steps in responsive web design include: 1. Set the viewport to ensure that the page width is correctly rendered by the mobile browser; 2. Use media query mediaqueries to set breakpoints to achieve style adaptation for different screen sizes; 3. Use Flexbox and Grid to achieve flexible layout; 4. Responsive processing of pictures and tables. First, add it in HTML to avoid abnormal page display on mobile terminals; then set common breakpoints such as 767px and 1024px through media query to control the style performance under different devices; use Flexbox to process one-dimensional layout, Grid handles two-dimensional layout, and improve structural adaptability; finally set max-width:100% for the picture
- CSS Tutorial . Web Front-end 672 2025-06-28 01:38:01
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- How to create responsive images in CSS?
- The core of the implementation of responsive images is to use HTML's srcset and sizes attributes to match CSS styles. 1. Use srcset to specify multiple pictures of different sizes and mark their widths (such as 480w, 800w, 1200w), so that the browser can automatically select the most suitable picture according to the viewport width; 2. Define the display ratio of the picture under different screen sizes through sizes, for example, "(max-width:600px)100vw" means that the small screen occupies the full viewport, otherwise it will occupy half of the width; 3. Set img{max-width:100%;height:auto;} in CSS to ensure that the picture is adaptable to the container and maintain the proportion; 4. Optionally, in srcset
- CSS Tutorial . Web Front-end 712 2025-06-28 01:37:10
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- How to comment in a CSS file?
- The way to add comments in a CSS file is to use // to wrap the comment content. 1. Comments can be used to illustrate the purpose of the code, separate modules, interpret complex logic, or retain temporary changes, such as / this is the style of the main title/; 2. Comments cannot be nested and do not support // form; 3. When using compression tools, please pay attention to whether the comments will be deleted. The rational use of comments can help improve code readability and team collaboration efficiency.
- CSS Tutorial . Web Front-end 970 2025-06-28 01:35:10
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- What are logical operators (and, not, only) in media queries?
- Logical operators and, not, and only in CSS media queries are used to combine or modify conditions to apply styles according to device characteristics. First, when using the and operator, multiple media characteristic conditions need to be connected. The style will take effect only if all conditions are true. For example, the screen width is between 768px and 1024px or the maximum width is 600px and is in a vertical screen state. Secondly, the not operator is used to negate the entire media query condition, and the style is only used when the conditions are not true, such as excluding color printers or high-resolution screens; finally, the only operator is mainly used to prevent old browsers (such as IE8 and earlier versions) from mistakenly applying modern media query styles. It does not affect logical judgments by itself, but ensures that only media query is supported.
- CSS Tutorial . Web Front-end 934 2025-06-28 01:34:52
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- How can you chain multiple class or attribute CSS Selectors to target a very specific element?
- Yes, CSS allows precise positioning of elements by chained combinations of classes and attribute selectors. 1. Use .class1.class2 to select elements that contain two classes at the same time, such as .button.primary only matches buttons that have both button and primary classes; 2. You can combine classes and attribute selectors, such as .button[disabled] to select buttons with disabled status, or .external-link[target="_blank"] to select links opened in a new window; 3. You can also superimpose multiple attribute selectors, such as input[type="text"][requi
- CSS Tutorial . Web Front-end 330 2025-06-28 01:32:10
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