Article Tags
Article Tags
How to style elements based on the number of children they have with CSS?
CSScannotdirectlycountchildren,butitcanstyleparentsbasedonchildcountusing:has()withselectorslike:first-child:last-childforexactlyonechild,:nth-child(N):last-childforexactlyNchildren,or:nth-child(N)foratleastNchildren—relyingonexistencechecksrathertha
Jan 26, 2026 am 05:27 AM
How to create a pure CSS hamburger menu icon?
AreliableCSS-onlyhamburgerusespairedwithatocontrolmenuvisibilityvia:checked siblingselectors;barsaredrawnwithpseudo-elementsonthelabel,styledresponsivelyusingem/rem,andanimatedwithpropertransform-originandtransitions.
Jan 26, 2026 am 05:04 AM
How to create a linear gradient background in CSS? (Code Examples)
Use the linear-gradient() function of CSS to create a linear gradient background, which supports direction control (such as toright, 45deg), multi-color stops, transparency (rgba) and browser-compatible fallback colors.
Jan 26, 2026 am 04:32 AM
How to implement fluid typography that scales with the viewport using CSS?
clamp()isthesimplest,mostreliablemethodforfluidtypography,usingmin/preferred/maxvaluestoenablesmooth,continuousscalingacrossscreensizeswhilerespectingaccessibilityandlayoutneeds.
Jan 26, 2026 am 04:08 AM
How to style an HTML and element with CSS?
To remove the default arrow and reset the style, use list-style:none to hide the arrow, display:block to avoid inline layout problems, and reset margin and padding; directly set the closed state through details, and set the open state through details:open; add and rotate custom icons using summary::before; ensure box-sizing:border-box to improve click responsiveness.
Jan 26, 2026 am 03:57 AM
How to add a blur effect to a background in CSS? (backdrop-filter)
Usebackdrop-filter:blur()onatranslucentelementtoblurbackgroundcontentwhilekeepingforegroundsharp;requirestransparency,properstacking,and-webkit-prefixforSafari.
Jan 26, 2026 am 02:53 AM
How to handle long words and text overflow with CSS?
Use overflow-wrap:break-word to safely wrap long words and only break words when necessary; word-break:break-all forces word breaks at any position, which is suitable for technical scenarios; text-overflow:ellipsis needs to be combined with white-space:nowrap and overflow:hidden to achieve omission.
Jan 26, 2026 am 12:22 AM
How to use CSS math functions like min(), max(), and clamp()?
Using min()/max() instead of fixed values can achieve dynamic boundary control, such as font-size scaling with the viewport between 1rem–2rem; clamp() is the abbreviation of min(max()) and is used for fluid typesetting; the unit type must be consistent, otherwise the declaration will be invalid.
Jan 26, 2026 am 12:13 AM
How to dynamically change CSS variables with JavaScript?
Use document.documentElement to obtain: rootCSS variable, use style.setProperty() to set it (requires -- prefix and string value), getComputedStyle().getPropertyValue() to read it, and use cssText for batch updates to avoid rearrangement.
Jan 25, 2026 am 04:19 AM
How to create an image comparison slider with CSS?
clip-pathdefinesavisibleregionfortheslider’stopimage,enablingresponsiveimagecomparisonbyclippingawayunwantedparts;useinset()orpercentage-basedpolygon()toavoidresizeissuesandensurecross-browsercompatibility.
Jan 25, 2026 am 03:56 AM
How to use media queries for mobile-first design in CSS? (Responsive Design)
Mobile-firstmeansstartingwithbasemobilestylesandusingmin-widthmediaqueriestoprogressivelyenhanceforlargerscreens,avoidingleaksandoverrides.Itprioritizesaccessibilitywithemunits,emphasizescontent-drivenbreakpointsoverdevice-specificones,andpreventscom
Jan 25, 2026 am 03:17 AM
What is the difference between position: relative, absolute, and fixed in CSS?
position:relative keeps the element in the document flow and is offset relative to its original position; position:absolute is out of the document flow and offset relative to the nearest positioned ancestor; position:fixed is always positioned relative to the viewport and does not move with scrolling.
Jan 25, 2026 am 03:16 AM
How to create a loading spinner with pure CSS?
TheCSSpropertiesthatmakeaspinnerspinareanimation(with@keyframesrotatingtransform:rotate())andborder(withasymmetriccoloring);animation-timing-function:linearensuressmoothmotion,andanimation-iteration-count:infiniteenablescontinuousrotation.
Jan 25, 2026 am 03:07 AM
How to build a card component with CSS Flexbox?
Flexboxisidealforcardlayoutsduetoitsrobusthandlingofunevencontent,responsivealignment,andconsistentspacing—superiortofloatsorinline-block—especiallywithvariabletextormixedmedia,avoidingfragileheight-matchinghacks.
Jan 25, 2026 am 02:05 AM
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