У SVG скошенная линия

svg { 
  margin: 20px; 
}

<svg viewBox="0 0 100 100" 
     width="350px"   
     height="70px" 
     preserveAspectRatio="none" 
     transform="scale(1,-1)"> 
  <path d="M 0,0 
           L 20,90 
           L 40 10 
           L 70 10"  
        fill="none"  
        stroke-linecap="round" 
        stroke="#886ce6" 
        stroke-width="5px"/> 
 
</svg>