Science Knowings: CSS Course For Social Media

CSS Borders

CSS Borders Overview

Welcome back! In this session, we're diving into CSS Borders, an essential component for styling and enhancing the visual appeal of your web pages.

What are Borders?

Borders are visual lines that surround elements on a web page. They can be used to separate and define different sections, create emphasis, and improve the overall readability of your content.

Border Styles

There are various border styles available in CSS, including solid, dashed, dotted, double, and many more. Each style can create a unique visual effect.

Border Widths

You can control the thickness of your borders using border widths. Specify the width in units like pixels, ems, or percentages.

Border Colors

Customize your borders by setting their color using standard color names or hex codes. You can match them with your website's theme or create contrasts.

Border Radius

Add some roundness to your borders by using border-radius. It allows you to create curved edges, giving your elements a softer and more modern look.

Shorthand Syntax

For convenience, CSS provides a shorthand syntax for setting all border properties at once. You can specify the style, width, and color all in one go.

The Box Model

Borders are part of the box model, which defines the overall size and layout of HTML elements. It consists of padding, borders, and margins.


Padding adds extra space inside the borders, creating a margin between the content and the border.


Margins add space outside the borders, creating a gap between elements.

Border Collapse

The border-collapse property allows you to collapse borders between adjacent elements, creating a single border for both.

Next Up: CSS Margins

In the next session, we'll explore CSS Margins, which provide control over the spacing around elements. Follow us to discover more advanced styling techniques.