Thoughtbot.com/blog/positioning
.
Styling links excellent MOZILLA
.
Styling CSS
.
Great styling tools summary from beaverjunction.
.
How to Smooth Scroll
.
CSS Scroll Snap Module Level 1
.
Responsive Top Nav W3
.
Complete-guide-to-css-scroll-snap-for-awesome-ux
.
Google’s excellent css-scroll-snap description
.
TOP BAR AND PAGE SCROLLS, HEADBUTTING Jump links and viewport positioning
.
Practical CSS Scroll Snapping
.
GREAT POSTIONNING TUTORIAL
CSS methodology description: | Good -› Developer.mozilla.org/en-US/docs/Learn/CSS/Building_blocks/Organizing – article

.
HTML Custom Elements | Great and clear -› developers.google.com/web/fundamentals/web-components – courseware
.
Jump-links-and-viewport-positioning