HTML div tag - W3Schools
The <div> tag defines a division or a section in an HTML document. The <div> tag is used as a container for HTML elements - which is then styled with CSS or manipulated with JavaScript.
CSS calc () - Multiplication and Division with unit-ed values
Apr 8, 2015 · In CSS calc () division - the right side must be a <number> therefore unit based values cannot be used in division like this. Also note that in multiplication at least one of the arguments must …
calc () - CSS | MDN
Dec 16, 2025 · Inversely, 200px / 4px resolves to 50, which does make sense in CSS. Therefore, when using the calc() function to divide numbers, using the / operator, supporting browsers allow units on …
Chapter 5 : CSS Divisions - CSS Basics
You have learned the very basics of CSS, how the syntax works and a bit about classes and IDs. Now we are gonna take a quick break from CSS and focus on the (X)HTML side of using it.
CSS Calc () Function: Complete Guide to Mathematical Calculations in ...
Jun 16, 2025 · The calc() function performs mathematical calculations to determine CSS property values. It accepts mathematical expressions using addition (+), subtraction (-), multiplication (*), and …
How unit division works in CSS, and how to use it today
Sep 13, 2024 · Unit division can be a powerful tool, and now that it is available in CSS, it opens up a world of possibilities for developers. It will greatly reduce our reliance on JavaScript for calculations, …
How To Create Dividers with CSS - W3Schools
Learn how to create different dividers with CSS. Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, …
Using CSS typed arithmetic - MDN
Nov 7, 2025 · CSS typed arithmetic enables dividing a value with one unit by a value with a different unit of the same data type, resulting in unitless quotients.
Using CSS math functions - MDN
Dec 16, 2025 · The calc() function lets you specify CSS property values using addition, subtraction, multiplication, and division. It is often used to combine two CSS values that have different units, such …
Styling HTML Divisions - CSS Basics - Chapter 5
Ok so you have finished the first 4 chapters in my series. You have learned the very basics of CSS, how the syntax works and a bit about classes and IDs. Now we are gonna take a quick break from CSS …