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- How to create a triangle with CSS?
- To create a CSS triangle, you need to use transparent border techniques: 1. Set the width to 0 and generate a triangle through the border. If the border-bottom is solid, the triangle will move upward; 2. Adjust the border width to control the size of the triangle, and the color is determined by the solid border; 3. It is often used in tooltip arrows, and positioned with position:absolute; 4. The clip-path can be used to implement it, but the border method is simpler and more compatible. Although this method is "hack", it is reliable and effective.
- CSS Tutorial . Web Front-end 127 2025-07-30 00:56:50
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- How to override CSS styles?
- TooverrideCSSstyleseffectively,ensureyourselectorhasequalorhigherspecificitythantheoriginalrule;2.Placeyourcustomstylesheetafterexternalstylesheetstoleveragecascadeorder;3.Use!importantsparingly,onlywhenspecificitycannotbematchedorfordebugging;4.Incr
- CSS Tutorial . Web Front-end 570 2025-07-30 00:38:50
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- css table-layout fixed example
- table-layout:fixed will force the table column width to be determined by the cell width of the first row to avoid the content affecting the layout. 1. Set table-layout:fixed and specify the table width; 2. Set the specific column width ratio for the first row th/td; 3. Use white-space:nowrap, overflow:hidden and text-overflow:ellipsis to control text overflow; 4. Applicable to background management, data reports and other scenarios that require stable layout and high-performance rendering, which can effectively prevent layout jitter and improve rendering efficiency.
- CSS Tutorial . Web Front-end 811 2025-07-29 04:28:11
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- How to style links in CSS?
- The style of the link should distinguish different states through pseudo-classes. 1. Use a:link to set the unreached link style, 2. a:visited to set the accessed link, 3. a:hover to set the hover effect, 4. a:active to set the click-time style, 5. a:focus ensures keyboard accessibility, always follow the LVHA order to avoid style conflicts. You can improve usability and accessibility by adding padding, cursor:pointer and retaining or customizing focus outlines. You can also use border-bottom or animation underscore to ensure that the link has a good user experience and accessibility in all states.
- CSS Tutorial . Web Front-end 284 2025-07-29 04:25:01
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- Why is my CSS not working?
- EnsuretheCSSfileiscorrectlylinkedwithaproperhrefpath,.cssextension,andplacedinthesection;2.CheckforspecificityandcascadeissuesusingDevTools,andadjustselectorsoruse!importantsparingly;3.Fixtyposorsyntaxerrorslikemissingsemicolons,unclosedbraces,ormiss
- CSS Tutorial . Web Front-end 197 2025-07-29 04:22:40
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- how to overlap elements in css
- To achieve CSS element overlap, you need to use positioning and z-index to control the casing order. 1. Use position:relative, absolute or fixed to remove elements from normal document flow and position them; 2. Set the stacking level through the z-index attribute, the larger the value, the higher the forward, but only take effect on the positioning elements; 3. Common modes include card layout, corner badges, etc. Note that the parent container may create a new stacking context to affect the effect; 4. Simple overlap can be implemented with negative margins, such as margin-left:-20px for avatar or label stacking. Correctly understand the positioning, stacking context and z-index action mechanism to accurately control the overlapping effect.
- CSS Tutorial . Web Front-end 868 2025-07-29 04:22:11
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- css glassmorphism effect example
- The core of Glassmorphism is to achieve the frosted glass effect through translucent background and background blur. The key steps are: 1. Use rgba to set the element's translucent background; 2. Use backdrop-filter:blur() to blur the background content; 3. Add light borders and shadows to enhance the sense of layering; 4. Ensure high contrast of the text and add -webkit-backdrop-filter compatible support in Safari. This effect performs best in dark or dynamic backgrounds.
- CSS Tutorial . Web Front-end 207 2025-07-29 04:21:51
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- What is the float property in CSS?
- The float attribute is used in CSS to float elements left or right to surround them, but modern layouts should use Flexbox or Grid; 1. float makes elements separate from the standard document flow and arrange them left or right; 2. It is often used in scenes such as picture surround, rather than page layout; 3. There are problems such as parent container collapse, and it needs to be repaired; 4. Modern development recommends using Flexbox or Grid instead of float for layout.
- CSS Tutorial . Web Front-end 206 2025-07-29 04:21:01
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- How to use ch and ex units in CSS?
- ThechandexunitsinCSSarerelativetofontdimensions,withchequaltothewidthofthe"0"characterandexequaltotheheightofthelowercase"x".1.Usechforhorizontalsizinglikeinputwidths(e.g.,width:20ch)andreadablelinelengths(e.g.,max-width:65ch).2.U
- CSS Tutorial . Web Front-end 449 2025-07-29 04:17:41
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- How to style a scrollbar in CSS?
- Use::-webkit-scrollbarpseudo-elementstostylescrollbarpartsliketrackandthumbforChrome,Edge,andSafari.2.Applystylestospecificcontainerslikemodalsorsidebarsusingclassselectorsfortargetedcustomization.3.ForFirefox,usescrollbar-widthandscrollbar-colorforb
- CSS Tutorial . Web Front-end 763 2025-07-29 04:15:51
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- How to use CSS custom properties for theming?
- Define CSS custom properties (such as --color-primary) in:root to implement globally accessible style variables; 2. Rewrite these variables by class (such as .theme-dark) to switch themes; 3. Use semantic naming and grouping prefix to improve maintainability; 4. Dynamically switch themes in JavaScript or combine prefers-color-scheme media query to respond to system preferences; 5. Use var() function to call variables and set alternate values to enhance compatibility, thereby achieving a modular, dynamic and easy-to-manage theme system.
- CSS Tutorial . Web Front-end 396 2025-07-29 03:47:21
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- What is a CSS reset?
- Using CSS reset can eliminate the differences in default styles between browsers and ensure that the page performs consistently across browsers. 1. Using CSS reset can solve the rendering inconsistency of h1 margins, ul indentation, paragraph spacing, etc.; 2. Common solutions include EricMeyerReset (completely clear styles), Normalize.css (standard rather than clear), and modern lightweight reset (such as box-sizing and unset); 3. Reset or standardization solutions are recommended when developing from scratch, while using frameworks such as Tailwind or Bootstrap can rely on its built-in baseline style. Therefore, while CSS reset is not necessary in modern development, understanding its principles helps achieve cross-browser consistency
- CSS Tutorial . Web Front-end 944 2025-07-29 03:44:31
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- css accordion example
- The answer is: the accordion effect can be achieved through the checkbox of HTML and the checked state of CSS. 1. Use checkbox as the state controller; 2. Use selector to control adjacent labels and contents; 3. Use max-height transition to realize the expansion and closing animation; 4. It can be replaced with radio to implement the single-select mode; 5. Support hover highlighting and style customization, with clear structure and good compatibility, suitable for use on FAQ pages and end with a complete sentence.
- CSS Tutorial . Web Front-end 154 2025-07-29 03:39:01
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- How to debug CSS?
- Usebrowserdevelopertoolstoinspectelements,viewappliedstyles,checkspecificity,editCSSinrealtime,togglepseudo-states,andvisualizetheboxmodel.2.Isolatetheproblembyaddingtemporaryborders,removingorsimplifyingCSS,andtestinginaminimalenvironmentlikeCodePen
- CSS Tutorial . Web Front-end 267 2025-07-29 03:27:12
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