calculate distance between the center of the element and the mouse pointer.
javascript - Find the distance between HTML element and browser (or window) sides - Stack Overflow
r - Calculate widest distance between two lines - Stack Overflow
html - Fluid width with equally spaced DIVs - Stack Overflow
Element size and scrolling
javascript - Get distance between two points in canvas - Stack Overflow
Calculating Percentage Margins in CSS - Hongkiat
A Basic Walkthrough of the CSS Box Model
How to set the perspective from where an element is viewed in CSS ? - GeeksforGeeks
Spacing in CSS - Ahmad Shadeed
javascript - How to get the distance from the top for an element? - Stack Overflow
A Complete Guide to calc() in CSS | CSS-Tricks - CSS-Tricks
Element size and scrolling
aspect-ratio | CSS-Tricks - CSS-Tricks
Equidistant Objects with CSS | CSS-Tricks - CSS-Tricks
CSS left | How left Property works in CSS | Examples
The Distance Formula
css - Angular5 - get distance of directive/component to top and left - Stack Overflow
calc() - CSS: Cascading Style Sheets | MDN
Coordinates
Using getBoundingClientRect() to find the distance between two elements | Hey Georgie
calculate Perpendicular distance between road centerline to property polygon
Coordinates
