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- Explain the concept of CSS reset and normalize.css
- Both CSSreset and Normalize.css are used to solve the problem of inconsistent browser styles, but the methods are different. 1. CSSreset provides a blank style base by removing all default styles, which is suitable for projects that require full control of styles; 2. Normalize.css adjusts and unifies the default styles, retaining useful default behavior, which is suitable for projects that want to reduce duplicate work. The selection depends on the requirements for style control and the type of project.
- CSS Tutorial . Web Front-end 764 2025-07-29 03:08:01
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- css backdrop-filter blur example
- Use backdrop-filter:blur() to achieve the frosted glass effect behind web elements. 1. This feature blurs the content behind the elements rather than itself; 2. It is often used in designs such as frosted glass cards, modal boxes, navigation bars, etc.; 3. It is necessary to combine semi-transparent backgrounds and borders to enhance the glass texture; 4. Pay attention to browser compatibility. Safari needs to add the -webkit-backdrop-filter prefix; 5. Avoid confusion with filter:blur(), which blurs the content of the element itself; 6. The blur intensity can be adjusted through media query or hover state to improve the experience; 7. Excessive use may affect performance, and it is recommended to be used for static or semi-static components. This technology is to implement glassmorph
- CSS Tutorial . Web Front-end 887 2025-07-29 02:50:20
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- How do you use the `display: table` and related properties?
- Use display:table layout to achieve HTML table-like arrangement effects through non-table elements, suitable for vertical centering, aligned and responsive designs. 1. Use display:table to create a class table container; 2. Set the child elements to display:table-cell to achieve cell alignment; 3. Use display:table-row to define the row structure; 4. Use vertical-align to achieve vertical centering; 5. Use table-layout to control column width allocation. This method provides stable alignment and adaptive layout solutions when flexbox is not dependent.
- CSS Tutorial . Web Front-end 715 2025-07-29 02:45:40
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- How to create a 'read more' link with CSS?
- The core of creating a "Readmore" link is to hide part of the text through CSS and switch classes with JavaScript to display the full text; 2. Use HTML structure to include preview text and hidden text, and control display through .active class; 3. Set .hidden-text{display:none} and cooperate with .read-more-container.active.hidden-text{display:inline} to achieve visible and hidden; 4. JavaScript adds click events to buttons, switch active class and change the button text to "Readless" or "Readmore"; 5. Optional pure
- CSS Tutorial . Web Front-end 699 2025-07-29 02:45:20
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- Describe the `object-fit` property for images/videos
- object-fit is a CSS property that controls how images or videos scale and align within their containers. 1.fill: stretch and fill the container, which may be deformed; 2.contain: Keep scaled, display the content in full, and leave blank; 3.cover: Keep scaled, cover the container, which may be cropped; 4.none: Keep the original size, which may be incomplete; 5.scale-down: reduce the proportion, and the effect is similar to contains but does not enlarge. When using it, be careful that the container must have a fixed width and height, and avoid setting width:auto or height:auto. Compatibility is good, but in older browsers you can consider background images or JavaScript alternatives. Suitable for responsive
- CSS Tutorial . Web Front-end 914 2025-07-29 02:29:50
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- css transform skew example
- skew() is a CSS deformation function, which is used to tilt elements along the X axis, Y axis, or both at the same time; 1. skew(angleX) is only tilted along the X axis, skew(angleX,angleY) is tilted along the two axes at the same time; 2. In the example, transform:skew(20deg, 5deg) is triggered by hover to realize card tilt animation; 3. Pseudo-elements can be used to tilt the background while the text remains forward; 4. Children elements can offset the parent tilt by reverse skew; 5. skew does not affect the document flow, and can adjust the tilt fulcrum with transform-origin, which is often used for visual enhancement, but excessive use should be avoided to affect readability.
- CSS Tutorial . Web Front-end 867 2025-07-29 02:27:51
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- How to use CSS blend modes?
- CSSblendmodescontrolhowelementsvisuallyinteractwithbackgroundsoroverlappingcontentusingtwoproperties:1.mix-blend-modeblendsanelementwithcontentbehindit,requiringoverlappingelementsforvisibleeffects;2.background-blend-modeblendsanelement’sownbackgroun
- CSS Tutorial . Web Front-end 182 2025-07-29 02:25:20
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- How to create a responsive card layout?
- Use CSSGrid to combine auto-fit and minmax (280px, 1fr) to create an automatic responsive card layout, which can be adaptively arranged under different screen sizes without media queries; 2. Each card should contain pictures, titles, descriptions and buttons, and improve visual performance by setting border, box-shadow, hover effects and object-fit:cover styles, etc.; 3. On mobile devices, you can force the grid to be a single column through media queries, and adjust the font size to optimize readability; 4. The optional Flexbox solution achieves similar effects through flex-wrap and flex attributes, but Grid is more concise and efficient when processing regular grids. The final recommendation is
- CSS Tutorial . Web Front-end 642 2025-07-29 01:59:21
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- How can you reduce file size of CSS?
- To reduce CSS file size, first remove unused CSS code, then compress and minimize CSS, then use efficient CSS selectors and avoid redundant styles, and finally optimize critical CSS to speed up first-screen loading. Useless code can be effectively removed through tools such as PurgeCSS or UnCSS, which can sometimes reduce file size by more than 50%. Minimize it with CSSNano or build tools such as Webpack and enable Gzip or Brotli compression to further reduce the transmission volume; adopt class selectors instead of complex selectors and reuse shared classes to improve performance and maintenance; performance-sensitive sites can also extract and inline key CSS to delay loading of other styles, thereby significantly improving pages
- CSS Tutorial . Web Front-end 207 2025-07-29 01:36:01
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- What is the CSS `will-change` property best used for?
- The best use scenario for CSS will-change attribute is to inform browser elements in advance of possible changes in order to optimize rendering performance, especially for animation or transition effects. ① It should be applied before the animation properties (such as transform, opacity or position) changes; ② Avoid premature use or long-term retention, and should be set before the change occurs and removed after completion; ③ It should only be used for necessary properties rather than using will-change:all; ④ Suitable for scenarios such as large scrolling animations, interactive UI components, and complex SVG/Canvas interfaces; ⑤ Modern browsers can usually optimize automatically, so there is no need to use will-change in all animations. Proper use can improve
- CSS Tutorial . Web Front-end 601 2025-07-29 01:05:41
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- How to style form inputs with CSS?
- Use the type selector to define the styles of text, mailbox and password input boxes respectively, and customize the check boxes and radio buttons through appearance:none; 2. Always set borders and shadows for the :focus status to improve accessibility; 3. Customize the placeholder colors and styles through the ::placeholder pseudo-element; 4. Use the :valid and :invalid pseudo-classes to provide visual feedback on form verification; 5. Use the browser-specific prefix to hide the default controls for numeric input to ensure cross-browser consistency. These steps enable beautiful, consistent, and easy-to-use form input controls.
- CSS Tutorial . Web Front-end 386 2025-07-29 00:57:31
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- How to use Google Fonts in CSS?
- Gotofonts.google.comandselectafontlikeOpenSans.2.Useeither@importinCSSorinHTMLtoincludethefont,withbeingbetterforperformance.3.Customizethefontbyadjustingweights,styles,andsubsetsintheURL.4.Alwaysprovideafallbackfontstacklike'OpenSans',Arial,sans-ser
- CSS Tutorial . Web Front-end 146 2025-07-29 00:20:21
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- How to create a grid in CSS?
- To define a grid container, you need to set display:grid; 2. Use grid-template-columns and grid-template-rows to set the row and column size; 3. Use fr, auto, % and other flexible units to achieve responsive layout; 4. Use repeat() function to simplify repeated column or row definitions; 5. Use minmax() and auto-fit/auto-fill to achieve adaptive grids; 6. Optionally, precisely control project location through grid-column, grid-row or grid-area; complete settings include container declaration, track definition, gap addition and responsive optimization, so that efficient and flexible two-dimensional layout can be built.
- CSS Tutorial . Web Front-end 175 2025-07-28 04:35:11
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- css modal popup example
- Use pure CSS to implement modal pop-up windows to control the visible and hidden checkbox. 1. Use input[type="checkbox"] as the status switch; 2. Use: checked .modal to control the display of modal boxes; 3. Use label[for] to trigger checking to achieve opening and closing; 4. Add @keyframes animation to achieve fade-in pop-up effect; 5. The close button or mask click area in the modal box can be bound to label control hidden. The entire process does not require JavaScript, is very compatible and has strong accessibility, and is suitable for static pages or lightweight interactive scenarios.
- CSS Tutorial . Web Front-end 911 2025-07-28 04:33:30
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