Center an element - CSS: Cascading Style Sheets | MDN
CSS Make Background Image Full Screen | SoftAuthor
Use CSS ::before and ::after for simple, spicy image overlays - bryanlrobinson.com
Full Browser Width Bars | CSS-Tricks - CSS-Tricks
How to Apply CSS Padding Around Your Website's Elements
Use linear gradient in CSS to split div in 2 colors but not in equal halves - Stack Overflow
How to create a Slanted Background with CSS? - Stack Overflow
Transparent Borders with background-clip | CSS-Tricks - CSS-Tricks
CSS Property: background | HTML Dog
CSS Tutorial: Create Diagonal Layouts Like It's 2020
Diagonal Borders With CSS And SVG - Andreas Wik
CSS for top right corner of the page - Stack Overflow
Background Image not working CSS - Stack Overflow
How to Position Background Images With CSS | by aliceyt | Better Programming
CSS Backgrounds and Borders Module Level 3
Alternate background colors for lines · Issue #39 · readium/readium-css · GitHub
Style Sheets | PhpStorm
CSS Overlay Techniques
Restricting a (pseudo) element to its parent's border-box | CSS-Tricks - CSS -Tricks
The New Feature of Background Position in CSS | by Elad Shechter | Medium
Test your skills: backgrounds and borders - Learn web development | MDN
11 CSS secrets you need to know in 2020 | Creative Bloq
Vertical text alignment in buttons and inputs | CodyHouse
Setting a Background Image | CSS, DHTML, and Ajax, Fourth Edition
Using CSS transitions - CSS: Cascading Style Sheets | MDN
