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console

            
<svg width="320" height="320" xmlns="http://www.w3.org/2000/svg">
  <symbol id="path">
     <path  class="path1" stroke="#E51B2F" fill="none" d="M11.9,0.5V109L0.5,97.9"/>
  </symbol>
  <use id="path1" xlink:href="#path"></use>
</svg>

            
#path1{
  stroke-dasharray:100% 0%;

  animation:move1 3s linear infinite;
}
 @keyframes move1{
   0%{
      stroke-dasharray:7% 200%;
   }
   100%{
     stroke-dasharray:100% 0%;
   }
}