CSS borders allow us to visually separate, highlight, or frame elements. By combining borders, modern, aesthetic, and well-structured designs can be created.
With the <border> property, we can set the border thickness, style, and color at once. Example: <border: 2px solid black;>.
In the following example, a <div> element is given a 2px thick black solid border:
Borders can have several styles: solid, dashed, dotted, double, groove, ridge, inset, and outset. These allow us to give varied appearances to elements.
With the <border-radius> property, we can round the corners of elements. It can be used for small rounding or even for creating fully circular elements.
It is not required to set the same border for every side. <border-top>, <border-right>, <border-bottom>, and <border-left> can be controlled separately, so each side can have a different style.
Borders can help improve visual hierarchy and design. Some useful tips:
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