<?xml version="1.0"?>
<svg width="6cm" height="4cm" viewBox="0 0 600 400" version="1.2" baseProfile="tiny"
     xmlns="http://www.w3.org/2000/svg" viewport-fill="rgb(255,150,200)">
  <desc>Example non-scaling stroke</desc>
  <rect x="1" y="1" width="598" height="398" fill="none" stroke="black" />
  
  <g transform="scale(9,1)">
    <line stroke="black" stroke-width="5" x1="10" y1="50" x2="10" y2="350"/>
    <line vector-effect="non-scaling-stroke" stroke="black" stroke-width="5" 
        x1="32" y1="50" x2="32" y2="350"/>
    <line vector-effect="none" stroke="black" stroke-width="5" 
        x1="55" y1="50" x2="55" y2="350"/>
  </g>

</svg>