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- Does my CSS must be on lower case?
- No,CSSdoesnothavetobeinlowercase.However,usinglowercaseisrecommendedfor:1)Consistencyandreadability,2)Avoidingerrorsinrelatedtechnologies,3)Potentialperformancebenefits,and4)Improvedcollaborationwithinteams.
- CSS Tutorial . Web Front-end 261 2025-06-19 00:29:10
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- CSS: When Does Case Matter (and When Doesn't)?
- In CSS, selector and attribute names are case-sensitive, while values, named colors, URLs, and custom attributes are case-sensitive. 1. The selector and attribute names are case-insensitive, such as background-color and background-Color are the same. 2. The hexadecimal color in the value is case-sensitive, but the named color is case-sensitive, such as red and Red is invalid. 3. URLs are case sensitive and may cause file loading problems. 4. Custom properties (variables) are case sensitive, and you need to pay attention to the consistency of case when using them.
- CSS Tutorial . Web Front-end 460 2025-06-19 00:27:11
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- Flexbox vs Grid in CSS: Pros, Cons, and Use Cases
- Flexboxisidealforone-dimensionallayouts,whileGridexcelsintwo-dimensionallayouts.1)UseFlexboxforsimpleralignmentslikenavigationbars.2)UseGridforcomplexgridsystemslikeportfoliolayouts.Bothareessentialformodernwebdesign,offeringflexibilityandcontrolover
- CSS Tutorial . Web Front-end 757 2025-06-19 00:26:30
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- Including CSS: Is there any impact on performance?
- CSSimpactswebperformancebutcanbeoptimized.1)MinifyandcompressCSSfilestoreduceloadtimes.2)ImplementcriticalCSSforabove-the-foldcontent.3)SimplifyCSSselectorstoimproverenderingspeed.4)OptimizeCSSpreprocessorstoavoidbloatedCSS.5)SplitCSSintosmallerchunk
- CSS Tutorial . Web Front-end 183 2025-06-19 00:24:30
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- CSS Counters: Browser Compatibility and Fallbacks
- CSScountersaresupportedinmodernbrowserslikeChrome,Firefox,Safari,andEdge,butnotinIE8andbelow,withlimitationsinIE9.1)Usecounter-resetandcounter-incrementtodefinecounters,andcounter()orcounters()in::beforeor::aftertodisplaythem.2)Forfallbacks,useJavaSc
- CSS Tutorial . Web Front-end 696 2025-06-19 00:16:50
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- Does CSS Care About Case? A Comprehensive Look
- CSSisnotstrictlycase-sensitiveforpropertynamesandvalues,butthereareexceptions.1)Propertynamesandvaluesarecase-insensitive,e.g.,'background-color:red;'works.2)SelectorsforHTMLelementsarecase-insensitive,butXML/XHTMLselectorsarecase-sensitive.3)CSScust
- CSS Tutorial . Web Front-end 621 2025-06-19 00:15:51
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- Unlock the Power of CSS Counters: Dynamic Content Numbering
- CSScountersenabledynamicnumberingwithoutJavaScript.1)Initializewithcounter-reset,2)incrementwithcounter-increment,3)displaywithcontent:counter().Theysupportnestedlistsandcustomstylesbutrequirecarefulscopemanagementandplanningforcomplexschemes.
- CSS Tutorial . Web Front-end 902 2025-06-19 00:15:21
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- Mastering CSS Counters: From Basic Numbering to Advanced Styling
- CSScounterscanbemasteredbyunderstandingtheirbasicuse,advancedapplications,andbestpractices.1)Usecounter-resetandcounter-incrementforbasicnumbering.2)Implementnestedcountersforcomplexstructureslikebooks.3)Testforbrowsercompatibilityandconsiderperforma
- CSS Tutorial . Web Front-end 333 2025-06-19 00:13:40
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- Are CSS counters easy to use?
- CSScountersareeasytousefornumberingelementsinCSS.1)TheyallowforcustomnumberingsystemswithoutalteringHTML.2)Theycanbenestedforcomplexstructuresbutrequirecarefulmanagementtoavoidresettingissues.3)Theyareefficientbutmayimpactperformanceinlargedocuments.
- CSS Tutorial . Web Front-end 357 2025-06-19 00:13:21
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- What Does @keyframes Do? Understanding CSS Animation Keyframes
- @keyframesdefinesanimationsequencesbyspecifyingstylechangesovertime.1)Itallowsprecisecontroloveranimationflow.2)Multiplepropertiescanbeanimatedwithinonesequence.3)Bestpracticesincludeusinganimationsjudiciously,ensuringbrowsercompatibility,optimizingp
- CSS Tutorial . Web Front-end 682 2025-06-19 00:10:41
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- Best Way to Include CSS: A Comprehensive Guide
- ThebestwaytoincludeCSSdependsonprojectsize,complexity,andperformanceneeds:1)UseinlineCSSforquicktweaksorsingleelements,2)InternalCSSsuitssmallprojectsormultipleelements,3)ExternalCSSfilesareidealforlargerprojects,and4)CSS-in-JSisgreatformodernJavaScr
- CSS Tutorial . Web Front-end 537 2025-06-19 00:07:21
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- How to Keep Up With New CSS Features
- How do you stay informed of new CSS features when the language evolves quickly and information is spread all around the web? Sacha Greif has some tips from his work running an annual survey focused on new CSS features.
- CSS Tutorial . Web Front-end 328 2025-06-18 10:06:10
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- @keyframes CSS: Best code examples
- CSS@keyframes is used to define the various stages and changes of animations. 1) Basic use: define animations through @keyframes, such as fadeIn changing from transparent to opaque. 2) Loop animation: Use the infinite keyword to create continuous rotation effect. 3) Performance optimization: Use the will-change attribute to improve animation fluency. 4) Accessibility: Adjust animations through prefers-reduced-motion media query to adapt to user preferences. 5) Flexible control: combine CSS variables to achieve color change animation. 6) Adjust the effect: Make the animation more natural by modifying the duration and timing-function.
- CSS Tutorial . Web Front-end 868 2025-06-18 00:05:00
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- A Better API for the Resize Observer
- ResizeObserver, MutationObserver, and IntersectionObserver enhance performance over their predecessors. Zell discusses their API similarities, usage steps, refactoring strategies, and advantages with practical examples.
- CSS Tutorial . Web Front-end 984 2025-06-17 12:58:10
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