SVG examples: circle

<?xml version="1.0" standalone="no"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">

<svg width="100%" height="100%" version="1.1"
     xmlns="http://www.w3.org/2000/svg">

<circle cx          ="100" 
        cy          ="50" 
        r           ="40" 
        fill        ="rgb(0,255,255)"
        stroke      ="rgb(255,0,0)"
        stroke-width="10" 
/>

</svg>