Responsive Web Design: Building Sites for Every Screen

Key actions to take:

1. Start your CSS styles with mobile layouts:
   css

   body {
    font-size: 16px;
    margin: 10px;
    }

2. Add media queries for larger screens:
   css

   @media (min-width: 768px) {
    body { 
     font-size: 18px;
     margin: 20px; 
     } 
   }

Example:

Key actions to take:

1. Use CSS frameworks like Tailwind or Bootstrap for pre-built grids.
2. For custom grids, define CSS Grid properties:
   css

   .container { 
     display: grid;
     grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
     gap: 16px; 
     } 
   }

Example:

Key actions to take:

1. Use responsive images with the srcset attribute:
   html

   <img src="default.jpg" srcset="small.jpg 480w, medium.jpg 768w, large.jpg 1200w" alt="Example">

2. Compress images using tools like TinyPNG or ImageOptim.

Example:

Key actions to take:

1. Use a hamburger menu for mobile navigation:
   html

   <button type="button" class="hamburger-menu" aria-label="Navigation button">☰</button>

2. Test navigation usability with real users to identify pain points.

Example:

Key actions to take:

1. Use browser tools like Google Lighthouse to identify performance issues.
2. Test on real devices and emulators to spot inconsistencies.

Example: