The Html <svg> element is used as a container for html SVG(Scalable Vector Graphics) Graphics . SVG Graphics is language based on XML for two dimensional graphics.
Syntax
<svg> <shape and attributes-regarding-shape/> </svg>
<svg width="100" height="100"> <circle cx="50" cy="50" r="40" stroke="black" stroke-width="5" fill="pink" /> </svg>

Rounded Rectangle
<svg width="400" height="100"> <rect x="50" y="10" rx="20" ry="20" width="200" height="80" style="fill:pink;stroke-width:2;stroke:black" /> Sorry, your browser does not support inline SVG. </svg>

HTML SVG Graphics: SVG Star
<svg width="300" height="200"> <polygon points="100,10 40,198 190,78 10,78 160,198" style="fill:pink;stroke:black;stroke-width:5;fill-rule:evenodd;" /> </svg>

HTML Canvas is also used for graphics. Visit HTML Canvas for more details.