responsive-web-design
Builds adaptive web interfaces using Flexbox, CSS Grid, and media queries with a mobile-first approach. Use when creating multi-device layouts, implementing flexible UI systems, or ensuring cross-browser compatibility.
How do I install this agent skill?
npx skills add https://github.com/secondsky/claude-skills --skill responsive-web-designIs this agent skill safe to install?
- Gen Agent Trust Hubpass
The skill provides valid, secure reference instructions and examples for creating responsive web design components using modern CSS tech (Flexbox, Grid, Media Queries). No code logic or risky operations are included.
- Socketpass
No alerts
- Snykpass
Risk: LOW · No issues
- Runlayerwarn
1/1 file flagged
- ZeroLeakspass
Score: 93/100 · 2 sections analyzed
What does this agent skill do?
Responsive Web Design
Build adaptive interfaces using modern CSS techniques for all screen sizes.
Mobile-First Media Queries
/* Base: Mobile (320px+) */
.container {
padding: 1rem;
}
/* Tablet (640px+) */
@media (min-width: 640px) {
.container {
padding: 2rem;
max-width: 640px;
margin: 0 auto;
}
}
/* Desktop (1024px+) */
@media (min-width: 1024px) {
.container {
max-width: 1024px;
}
}
Flexible Grid
.grid {
display: grid;
gap: 1rem;
grid-template-columns: 1fr; /* Mobile: single column */
}
@media (min-width: 640px) {
.grid {
grid-template-columns: repeat(2, 1fr); /* Tablet: 2 columns */
}
}
@media (min-width: 1024px) {
.grid {
grid-template-columns: repeat(3, 1fr); /* Desktop: 3 columns */
}
}
Fluid Typography
/* Scales smoothly between breakpoints */
h1 {
font-size: clamp(1.5rem, 4vw, 3rem);
}
p {
font-size: clamp(1rem, 2vw, 1.25rem);
}
Responsive Images
img {
max-width: 100%;
height: auto;
}
.hero-image {
width: 100%;
aspect-ratio: 16 / 9;
object-fit: cover;
}
Flexbox Navigation
.nav {
display: flex;
flex-direction: column;
gap: 0.5rem;
}
@media (min-width: 768px) {
.nav {
flex-direction: row;
justify-content: space-between;
align-items: center;
}
}
Best Practices
- Start with mobile styles first
- Use flexible units (%, rem, vw)
- Test on real devices
- Ensure minimum 48px touch targets
- Maintain readable line lengths (45-75 chars)
- Use CSS Grid for 2D layouts, Flexbox for 1D
Resources
How can the creator link this skill?
Add the canonical catalog link to the repository README so users can inspect current installs and available audits. The publishing guide covers the complete discovery path.
<a href="https://skillzs.dev/skills/secondsky/claude-skills/responsive-web-design">View responsive-web-design on skillZs</a>