CSS Box Model

Interactive visualizer — total size: 286 x 186px

margin: 20px

border: 3pxpadding: 20px

200 x 100

Margin: 20px

Border: 3px

Padding: 20px

Width: 200px

Height: 100px

Border Color

CSS

width: 200px;
height: 100px;
margin: 20px;
padding: 20px;
border: 3px solid #3b82f6;