CSS supports a variety of different length units, which can be divided into two groups according to different types: absolute length units (such as inches, centimeters, and points) and relative length units (such as percentage). This article will show you some examples of how to use CSS absolute and relative length units.
SVG is the abbreviation of Scalable Vector Graphics. It uses XML format text to define vector graphics. It is recommended by W3C to draw graphics on the Html web pages. This article will tell you how to use SVG in the Html web page to draw Circle, Ellipse, Rectangle, Square, Polygon shapes with some examples.