Article Tags
Article Tags
What is the :focus-visible pseudo-class in CSS for accessibility?
:focus-visibletriggersonlyonkeyboardfocus(e.g.,Tab),notmouse/touch;useitalongside:focusforaccessiblefocusindicators,butitdoesn’treplaceproperfocusmanagement,HTMLsemantics,orJavaScripthandling.
Jan 22, 2026 am 05:52 AM
What is a CSS reset and why do you need one?
CSS reset eliminates browser style differences by uniformly setting margin, padding and other attributes to provide a consistent basis; Normalize.css retains useful default styles and fixes bugs, making it more suitable for modern frameworks.
Jan 22, 2026 am 05:25 AM
How to create a dark mode toggle using CSS and JavaScript?
Dark mode switching must act on document.documentElement rather than body or container elements to ensure that CSS variables, inherited properties and media queries take global effect; theme status should be managed collaboratively through localStorage and prefers-color-scheme, and accessibility attributes such as aria-pressed should be correctly set.
Jan 22, 2026 am 04:25 AM
How to create a responsive circle or oval with CSS?
Useaspect-ratioforreliablecirclesandovals:setaspect-ratio:1/1forcirclesor2/1forovals;worksonblockelementswithwidth:100%,supportedinmodernbrowsers,avoidexplicitheight,centercontentwithflex,fallbacktopadding-bottomforolderbrowsers.
Jan 22, 2026 am 02:36 AM
How to style the scrollbar with CSS?
Modern browsers support custom scroll bars, but the syntax and compatibility vary greatly: WebKit engines (Chrome/Safari/Edge) use the ::-webkit-scrollbar series of pseudo-elements, while Firefox requires the scrollbar-width and scrollbar-color attributes. The two are incompatible with each other, and both require the element to be actually scrollable.
Jan 22, 2026 am 02:07 AM
What is the CSS scroll-snap property for building swipeable interfaces?
scroll-snap-type and scroll-snap-align are the core attributes for implementing scroll adsorption. The former controls the container adsorption behavior (such as xmandatory), and the latter needs to be set on each child element to define the alignment (such as start). scroll-snap-stop:always can limit only specified elements to be valid stops.
Jan 22, 2026 am 12:32 AM
How to use font-variant-numeric for advanced OpenType features in CSS?
font-variant-numericcontrolsOpenTypenumericfeatureslikelnum,onum,tnum,pnum,zero,andordnviaCSSshorthand,butonlyworksifthefontsupportsthosefeatures;otherwise,ithasnovisibleeffect.
Jan 21, 2026 am 05:16 AM
How to override Bootstrap or other framework styles with your custom CSS?
The main reason why custom CSS does not cover Bootstrap styles is insufficient selector specificity or wrong loading order; you should ensure that custom CSS is loaded after Bootstrap, give priority to overwriting by increasing class selector specificity (such as button.btn) rather than !important, and make good use of CSS variables to redefine Bootstrap design tokens.
Jan 21, 2026 am 05:07 AM
How to create a neon glow effect on text with CSS?
Neonglowiscreatedbylayeringtext-shadowvalueswithincreasingblurradiusanddecreasingopacitytosimulatelightbleedingoutward.Startwithasolidbasecolor,thenaddprogressivelylarger,moretransparentshadows—smallestblur/highestopacityfirst,largestblur/lowestopaci
Jan 21, 2026 am 04:41 AM
How to ensure your CSS is accessible for screen reader users?
Use sr-only classes to hide content to balance visual and accessibility requirements, avoid display:none; ensure focused elements have visible indicators; do not rely solely on color to convey information; prioritize using semantic HTML over CSS to simulate interactions.
Jan 21, 2026 am 04:29 AM
How to create a sticky footer using modern CSS?
Position:fixedbreaksfootersbyoverlappingcontentandignoringscroll;useflexbox(display:flex margin-top:auto)orCSSGridwithmin-height:100vh/100dvh,plusproperviewportmetatagforreliablestickybehavior.
Jan 21, 2026 am 01:51 AM
How to implement scroll-snap for slider effects in CSS? (Scroll Control)
scroll-snapisanativeCSSfeaturethatforcesscrollpositionstoalignwithdesignatedelements,idealforfull-viewporthorizontalslidesbutlimitedforautoplay,advancedkeyboardnavigation,ortouchinertiatuning.Itrequiresscroll-snap-typeonthecontainer,scroll-snap-align
Jan 21, 2026 am 01:36 AM
Can you build a fully functional tabs component with only CSS?
Yes, pure CSS can be used to build a fully functional and accessible tab page component, but there are keyboard navigation and ARIA semantic limitations; the core relies on the radio label brother selector control panel to display and hide, and requires strict DOM order, hiding radio buttons, triggering display with :checked, and manually adding ARIA attributes to improve screen reader support.
Jan 21, 2026 am 01:33 AM
How to use the @property rule to animate CSS custom properties?
@property is only supported in Chromium browsers (Chrome ≥ 110, etc.), and is completely ignored by Firefox and Safari; syntax, inherits, and initial-value need to be declared in advance; animation can only be used indirectly through properties such as transform, and the custom property itself cannot be directly animated.
Jan 21, 2026 am 12:45 AM
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