Step 3: Header Navigation via CSS Flexbox

3. Header Navigation via CSS Flexbox

Create a sticky top navigation header that uses CSS Flexbox rules to layout elements.

Detailed Implementation Steps:

Inside your HTML header tag, construct a navigation container containing: a brand logo placeholder, an unordered list of page links, and a call-to-action button. Apply flex styling to the header navigation element so items align horizontally.

Configure the layout using flex alignment properties (such as justify-content: space-between and align-items: center) to position items. Make the header sticky by setting position: sticky with a top offset of 0. Add hover animations to nav links using CSS transitions for color changes.

Verification Checklist:

1. Verify navigation items line up on a single horizontal row on desktop.
2. Test scroll behavior: check that the header container stays pinned to the top of the viewport when scrolling down the page.