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UI Design

Comprehensive UI design skill covering fundamentals, patterns, and anti-patterns. Layout, typography, color, spacing, accessibility, motion, and component design. Use when building any web interface, reviewing design quality, or creating distinctive UIs.

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Comprehensive UI design skill covering fundamentals, patterns, and anti-patterns. Layout, typography, color, spacing, accessibility, motion, and component design. Use when building any web interface, reviewing design quality, or creating distinctive UIs.

โฌ‡ 0 downloads โ˜… 0 stars Unverified but indexed

Install for OpenClaw

Quick setup
  1. Download the package from Yavira.
  2. Extract the archive and review SKILL.md first.
  3. Import or place the package into your OpenClaw setup.

Requirements

Target platform
OpenClaw
Install method
Manual import
Extraction
Extract archive
Prerequisites
OpenClaw
Primary doc
SKILL.md

Package facts

Download mode
Yavira redirect
Package format
ZIP package
Source platform
Tencent SkillHub
What's included
README.md, SKILL.md

Validation

  • Use the Yavira download entry.
  • Review SKILL.md after the package is downloaded.
  • Confirm the extracted package contains the expected setup assets.

Install with your agent

Agent handoff

Hand the extracted package to your coding agent with a concrete install brief instead of figuring it out manually.

  1. Download the package from Yavira.
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New install

I downloaded a skill package from Yavira. Read SKILL.md from the extracted folder and install it by following the included instructions. Then review README.md for any prerequisites, environment setup, or post-install checks. Tell me what you changed and call out any manual steps you could not complete.

Upgrade existing

I downloaded an updated skill package from Yavira. Read SKILL.md from the extracted folder, compare it with my current installation, and upgrade it while preserving any custom configuration unless the package docs explicitly say otherwise. Then review README.md for any prerequisites, environment setup, or post-install checks. Summarize what changed and any follow-up checks I should run.

Trust & source

Release facts

Source
Tencent SkillHub
Verification
Indexed source record
Version
1.0.0

Documentation

ClawHub primary doc Primary doc: SKILL.md 47 sections Open source page

UI Design Fundamentals

The definitive guide for building production-grade web interfaces. Covers the full stack of design decisions from layout to motion.

WHEN To Use

Designing new UI components or pages Building landing pages, dashboards, or applications Reviewing code for design quality Creating distinctive interfaces that avoid generic aesthetics Implementing accessibility requirements

KEYWORDS

ui design, web design, layout, typography, color palette, spacing, visual hierarchy, responsive design, accessibility, motion design, component design, design tokens, frontend, css, tailwind

The 80/20 of Design Quality

FactorImpactTime InvestmentTypography40%Choose 1-2 fonts wellSpacing25%Use consistent scaleColor20%Limit palette, ensure contrastEverything else15%Shadows, borders, motion Focus on typography and spacing first. They're 65% of perceived quality.

Commit to a Direction

Mediocrity is forgettable. Pick an extreme: DirectionCharacteristicsUse WhenBrutally MinimalStark, essential, nothing extraDeveloper tools, productivityLuxury/RefinedPremium, subtle eleganceHigh-end products, fashionPlayfulFun, bright, approachableConsumer apps, gamesEditorialType-forward, grid-basedContent sites, magazinesIndustrialFunction-forward, robustB2B, enterprise

Grid vs Flexbox Decision

Layout NeedToolWhyPage-level structureCSS Grid (grid-template-areas)Named regions, explicit controlNavigation barsFlexboxSingle-axis, gap spacingCard gridsGrid (auto-fill/auto-fit)Responsive without media queriesCenteringGrid (place-items: center)Shortest, most reliableSidebar + contentGrid (250px 1fr)Fixed + fluidStacking/overlapsGrid + grid-area: 1/1No position: absolute needed

Container Strategy

/* Standard content width */ .container { width: 100%; max-width: 1280px; margin-inline: auto; padding-inline: clamp(1rem, 5vw, 3rem); } /* Full-bleed with contained content */ .full-bleed { width: 100vw; margin-left: calc(50% - 50vw); }

Common Layout Mistakes

MistakeProblemFixMixing container widthsInconsistent alignmentUse single max-w-* valueContent behind fixed navbarHidden contentAdd pt-[navbar-height]No mobile paddingEdge-to-edge textAdd px-4 minimumCentered everythingWeak hierarchyLeft-align body text

Typography

Typography carries 90% of a design's personality.

Font Pairing by Context

ContextDisplay FontBody FontExampleEditorialHigh-contrast serifNeutral humanistPlayfair + Source SansSaaSGeometric sansMatching sansDM Sans + DM MonoLuxuryThin modern serifElegant sansCormorant + JostDeveloperMonospace displayMonospace bodyJetBrains Mono + IBM PlexPlayfulRounded/quirkyClean readableNunito + Outfit

Type Scale (1.25 ratio)

--text-xs: 0.64rem; /* 10px - captions */ --text-sm: 0.8rem; /* 13px - secondary */ --text-base: 1rem; /* 16px - body */ --text-lg: 1.25rem; /* 20px - lead */ --text-xl: 1.563rem; /* 25px - h4 */ --text-2xl: 1.953rem; /* 31px - h3 */ --text-3xl: 2.441rem; /* 39px - h2 */ --text-4xl: 3.052rem; /* 49px - h1 */

Typography Rules

RuleValueWhyMinimum body size16pxBelow is hard to readBody line-height1.5-1.75Improves readabilityHeading line-height1.1-1.2Tighter for large textLine length60-75 charactersOptimal readingParagraph spacing1.5emClear separation

Typography Mistakes

MistakeProblemFixSystem fonts onlyGeneric lookUse Google Fonts or variable fontsToo many fontsVisual chaosMax 2 familiesWeak weight contrastPoor hierarchyBold headings (600+), regular bodyLong linesHard to readAdd max-w-prose (65ch)

Building a Palette

Every palette needs five functional roles: RolePurposeUsagePrimaryBrand identityButtons, links, active statesNeutralText, backgroundsBody text, cards, dividersAccentSecondary actionsTags, badges, highlightsSemanticFeedbackSuccess/warning/error statesSurfaceLayered backgroundsCards, modals, overlays

Surface Layering (Dark Mode)

Create depth through lightness, not shadows: :root { --surface-0: hsl(220 15% 8%); /* page background */ --surface-1: hsl(220 15% 12%); /* card */ --surface-2: hsl(220 15% 16%); /* raised element */ --surface-3: hsl(220 15% 20%); /* popover/modal */ }

Contrast Requirements (WCAG)

Text SizeMinimum RatioEnhanced (AAA)Normal text (<18px)4.5:17:1Large text (โ‰ฅ18px bold, โ‰ฅ24px)3:14.5:1UI components3:1โ€”

Color Mistakes

MistakeProblemFixPurple gradient on white"AI aesthetic" clichรฉUse intentional brand colorsLow contrast textAccessibility failTest with contrast checkerColor-only indicatorsColorblind users excludedAdd icons/textToo many colorsVisual noise3-5 colors maximumLight gray text on whiteUnreadableslate-600 minimum

8px Base Unit Scale

--space-1: 0.25rem; /* 4px - tight gaps */ --space-2: 0.5rem; /* 8px - input padding */ --space-3: 0.75rem; /* 12px - button padding */ --space-4: 1rem; /* 16px - default spacing */ --space-6: 1.5rem; /* 24px - section padding */ --space-8: 2rem; /* 32px - section gaps */ --space-12: 3rem; /* 48px - major breaks */ --space-16: 4rem; /* 64px - page rhythm */

Spacing Rules

RuleImplementationUse gap not marginsdisplay: flex; gap: var(--space-4)Consistent paddingSame values on all cards/sectionsMore space between groupsLess space within groups (Gestalt)No arbitrary valuesOnly use scale tokens

Spacing Mistakes

MistakeProblemFixArbitrary pixel valuesInconsistent rhythmUse spacing scale onlyMargin on childrenMargin collapse bugsUse gap on parentEqual spacing everywhereNo visual groupingMore between, less withinTight mobile paddingCramped feelingMinimum p-4 on mobile

Visual Hierarchy

Guide the eye through deliberate contrast.

Hierarchy Techniques

TechniqueHowImpactSizeHero 3-4x bodyImmediate focal pointWeightBold headings, regular bodyScannabilityColorPrimary vs mutedInformation layersSpaceIsolation creates emphasisDraws attentionPositionTop-left anchors readingNatural flow

Card Hierarchy Pattern

Eyebrow โ† xs, uppercase, muted color Title โ† xl, semibold, primary color Body โ† base, secondary color, 1.6 line-height Action โ† spaced apart, mt-4 minimum

Breakpoint Strategy

BreakpointTargetKey Changes< 640pxMobileSingle column, stacked nav, 44px touch targets640-1024pxTabletTwo columns, collapsible sidebars1024-1440pxDesktopFull layout, hover enabled> 1440pxWideMax-width container, prevent ultra-wide lines

Fluid Techniques

/* Fluid typography */ h1 { font-size: clamp(2rem, 1.5rem + 2.5vw, 3.5rem); } /* Fluid spacing */ section { padding-block: clamp(2rem, 1rem + 4vw, 6rem); } /* Intrinsic grid */ .grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 20rem), 1fr)); gap: var(--space-6); }

Responsive Mistakes

MistakeProblemFixNo viewport metaBroken mobileAdd width=device-widthFixed widthsOverflow on mobileUse max-w-* and %Tiny touch targetsFrustrating tapsMinimum 44x44pxHidden horizontal scrollBroken layoutTest at 375px width

Accessibility

Accessibility is not optional.

Critical Requirements

RequirementImplementationStandardColor contrast4.5:1 normal, 3:1 largeWCAG 2.1 AAKeyboard navigationTab order matches visualWCAG 2.1.1Focus indicatorsVisible :focus-visible ringWCAG 2.4.7Semantic HTML<button>, <nav>, <main>WCAG 1.3.1Alt textDescriptive for imagesWCAG 1.1.1Motion safetyprefers-reduced-motionWCAG 2.3.3Touch targets44ร—44px minimumWCAG 2.5.8

Focus Styles

:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; } /* Remove default only if custom exists */ :focus:not(:focus-visible) { outline: none; }

Motion Safety

@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; } }

Motion & Animation

Use motion to communicate, not decorate.

Timing Guidelines

InteractionDurationEasingButton hover150msease-outModal open250msease-outModal close200msease-inPage transition300msease-in-outStagger delay50-80ms per itemโ€”Micro-feedback100msease-out

Staggered Entrance

.item { opacity: 0; translate: 0 1rem; animation: reveal 0.5s ease-out forwards; } .item:nth-child(1) { animation-delay: 0ms; } .item:nth-child(2) { animation-delay: 60ms; } .item:nth-child(3) { animation-delay: 120ms; } @keyframes reveal { to { opacity: 1; translate: 0 0; } }

Motion Mistakes

MistakeProblemFixAnimating width/heightPerformance hitUse transform only> 500ms durationFeels sluggish150-300ms for mostMotion everywhereOverwhelmingFocus on entrances/exitsNo reduced-motionAccessibility failAlways check preference

Component States

Every interactive element needs clear states. StateVisual TreatmentDefaultBase stylingHoverSubtle background/shadow shiftActive/PressedSlight inset, reduced shadowFocusHigh-visibility ringDisabled50% opacity, not-allowed cursorLoadingSpinner or skeleton

Button Example

.btn { transition: all 150ms ease-out; } .btn:hover { background: var(--color-primary-600); } .btn:active { transform: scale(0.98); } .btn:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; } .btn:disabled { opacity: 0.5; cursor: not-allowed; }

Design Tokens Architecture

Structure tokens in three layers: /* Layer 1: Primitives */ --blue-500: oklch(0.55 0.2 250); --gray-100: oklch(0.95 0.005 250); --radius-md: 0.5rem; /* Layer 2: Semantic */ --color-primary: var(--blue-500); --color-surface: var(--gray-100); --radius-button: var(--radius-md); /* Layer 3: Component */ --btn-bg: var(--color-primary); --btn-radius: var(--radius-button); --btn-padding: var(--space-2) var(--space-4); This allows theme switching by remapping Layer 2 only.

Typography

Intentional font pairing (not system defaults) Consistent type scale Line length โ‰ค 75 characters 16px minimum body text

Color

Cohesive palette (3-5 colors) WCAG contrast met (4.5:1 normal, 3:1 large) Semantic colors defined Dark mode tested (if applicable)

Spacing

Consistent rhythm using scale No arbitrary pixel values Proper mobile padding

Hierarchy

Clear visual flow Primary action obvious Information layered by importance

Responsive

Mobile tested (375px) No horizontal overflow Touch targets โ‰ฅ 44px

Accessibility

Keyboard navigable Focus visible Screen reader tested Motion-safe

States

Hover on all interactive elements Focus-visible on all focusable Loading states for async Error states for forms

Performance

Images optimized (WebP, srcset) Fonts subset Animations use transform/opacity

NEVER Do

NEVER skip contrast checking โ€” Test every text/background combination NEVER use color alone โ€” Always pair with icons/text for meaning NEVER remove focus outlines โ€” Unless replacing with visible alternative NEVER use arbitrary spacing โ€” Stick to the scale NEVER animate layout properties โ€” Only transform and opacity NEVER ignore reduced-motion โ€” Always check the preference NEVER center everything โ€” Left-align body text NEVER use tiny touch targets โ€” 44px minimum NEVER use low-contrast text โ€” slate-600 minimum on white NEVER use generic system fonts โ€” Choose intentional typography

Related Skills

ui-ux-pro-max โ€” Searchable design databases with CLI frontend-design โ€” Creative aesthetics, avoiding "AI slop" theme-factory โ€” Applying themes to artifacts design-system-patterns โ€” Token architecture and theming

Category context

Writing, remixing, publishing, visual generation, and marketing content production.

Source: Tencent SkillHub

Largest current source with strong distribution and engagement signals.

Package contents

Included in package
2 Docs
  • SKILL.md Primary doc
  • README.md Docs