<div class="container">
  <svg 
    xmlns="http://www.w3.org/2000/svg" 
    version="1.1"
    viewBox="0 0 1 1"
  >
    <!-- ... -->
  </svg>
</div>		

.container {
  width: 200px;
}

<div class="container">
  <canvas width="200px" height="100px"></canvas>
  <svg 
    xmlns="http://www.w3.org/2000/svg" 
    version="1.1" 
    viewBox="0 0 2 1"
  >
    <!-- ... -->
  </svg>
</div>

.container {
  position: relative;
  width: 200px;
}
.container svg {
  left: 0;
  position: absolute;
  top: 0;
  width: 100%;
}

canvas {
  display: block;
  height: 100%;
  visibility: hidden;
  width: 100%;
}