Draw a line along the direction of the stripes, let's say along the main diagonal. Defaults for `x1` , `y1` , `x2` , `y2` are all `0` and we want the start point `x1,y1` to be at `0,0` (top left corner) anyway, so we only set `x2,y2` at `100%,100%` (bottom right corner).

    <line x2='100%' y2='100%' stroke='orange'/>

Make this line dashed.

    <line x2='100%' y2='100%' stroke='orange' stroke-dasharray='20%'/>

Make this line thicker.

    <line x2='100%' y2='100%' stroke='orange' stroke-dasharray='20%' stroke-width='20%'/>

No, not like that... really, much thicker!

    <line x2='100%' y2='100%' stroke='orange' stroke-dasharray='20%' stroke-width='150%'/>