Article Tags
Article Tags
How to hide elements with CSS? (Display None vs Visibility Hidden)
display:noneremovestheelementfromflow,reservesnospace,andhaltsanimations;visibility:hiddenpreserveslayoutspacebuthidesvisuallyandmaintainsanimations;opacity:0retainsinteractivityandlayout.
Feb 02, 2026 am 12:12 AM
How to use CSS initial, inherit, and unset? (Resetting Styles)
Whatinitialactuallydoes—andwhyit’snota“reset”initialsetsapropertytoitsCSSspecification-definedinitialvalue—notthebrowser’sdefault,anddefinitelynotyourcustomreset.Forexample,display:initialresolvestoinline(notblock),
Feb 02, 2026 am 12:02 AM
How to create a multi-column layout with the CSS column-count property?
column-count is specially used for long text flow columns, such as news text and encyclopedia entries; it needs to be used in conjunction with column-gap and column-rule. It is disabled for component layouts such as cards. Break-inside:avoid must be used to prevent content from breaking across columns.
Feb 01, 2026 am 03:57 AM
How to animate elements with CSS? (Keyframes and Transitions)
Usetransitionforsimplestatechanges(hover/focus)withstart/endstates;use@keyframesforcomplex,multi-step,loopinganimations.Prefertransform/opacityforperformance;avoidlayout-triggeringproperties.
Feb 01, 2026 am 03:56 AM
How to create a CSS accordion? (Max-height and Transitions)
max-heightisusedinsteadofheightforaccordiontransitionsbecauseheight:autocan’tbeanimated;browsersrequirenumericstart/endvalues,somax-heightactsasaproxy.Setithighenoughtocontainallcontent(e.g.,500px),animatebetween0andthatvalue,pairwithoverflow:hidden,
Feb 01, 2026 am 03:51 AM
What's the best way to link a CSS file to an HTML file?
withrel="stylesheet"mustbeinbeforedependenttags;rel="stylesheet"isrequiredforCSSrecognition;hrefpathsarerelativetoHTMLfile;loadingisrender-blocking;@importcausesextraroundtrips.
Feb 01, 2026 am 03:49 AM
How to create a speech bubble shape with pure CSS?
Thebubbletipisdrawnusingabordered::before/::afterpseudo-elementwiththreetransparentbordersandonecoloredborder;positionitabsolutelywithinarelativelypositionedparenttoavoidlayoutshifts,useCSScustompropertiesfordarkmode,andavoidclip-pathforsimplicityand
Feb 01, 2026 am 03:05 AM
How to create a responsive sidebar with CSS? (Flex and Media Queries)
Useflexboxwithaflexcontainer(flex-direction:row),fixed/flexiblesidebar(e.g.,flex:00250pxormin-width:240px),andmaincontent(flex:1);onmobile,switchtocolumn,adjustorder,andtestedgecases.
Feb 01, 2026 am 02:26 AM
How to style form inputs with CSS? (Focus and Validation States)
Use:focuswithvisiblefocusstylesinsteadofoutline:none;style:invalid/:validbasedonuserinteraction;prioritizeinput:focus:invalidtoavoidconflicts;use:placeholder-showntodelayvalidationcuesuntilinputisedited.
Feb 01, 2026 am 01:24 AM
How to create a CSS tooltip? (Pseudo-elements and Positioning)
The pseudo element tooltip requires the parent element to set position:relative and explicitly set z-index for the pseudo element; the arrow must be accurately positioned using the border technique transform; it must support focus-within, control the hover gap ≤ 8px, and add aria-label.
Feb 01, 2026 am 12:12 AM
How to create a simple accordion with just HTML and CSS?
Theelementprovidesanative,accessible,JavaScript-freeaccordionsolutionwheretheactsasatoggleandbrowsersmanagetheopenstateautomatically;stylingrequiresresettinglist-style,using::afterforcustomicons,andanimatingmax-heightinsteadofheight:autoforsmoothtran
Jan 31, 2026 am 04:44 AM
How to use CSS custom properties to theme a website?
Themevariablesmustbedefinedin:rootwithsemanticnameslike--color-primary;appliedviavar()withfallbacks;themesswitchedbyupdating:rootpropertiesviaclasstoggles;SSRrequiresearlyJSdetectionorinlinethemeCSStopreventflash.
Jan 31, 2026 am 04:24 AM
How to debug your CSS with browser developer tools?
First check the calculated style: open the Computed tab of DevTools, check the final value and source of the attribute, and confirm whether the rules match or are overwritten; then use the Styles panel to analyze specific conflicts, real-time editing verification, forced pseudo-class status, and media query debugging.
Jan 31, 2026 am 04:17 AM
How to create a responsive image gallery with CSS Grid? (Code Example)
Use CSSGrid to create a responsive gallery, implement spatial adaptive column layout through grid-template-columns:repeat(auto-fit,minmax(280px,1fr)), and cooperate with object-fit:cover, aspect-ratio and gap to ensure consistent image scaling and spacing. It can usually be adjusted responsively without media queries.
Jan 31, 2026 am 04:04 AM
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