drawquer
page1
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
<svg version="1.1" xmlns="http://www.w3.org/2000/svg"
width="12cm" height="20cm" >
<rect x="0cm" y="0cm" width="12cm" height="20cm"
fill="yellow" stroke="none" />
<rect x="0%" y="0%" width="50%" height="50%"
fill="none" stroke="blue" stroke-width="3px"/>
</svg>
The blue rectangle should have half width and half height of the yellow rectangle.