<svg width="90pt" height="100pt" xmlns="http://www.w3.org/2000/svg">

  <style>

  @page {

    size: 90pt 100pt;

    margin: 0;

  }

  svg {

    width: 90pt;

    height: 100pt;

  }

  </style>

  <ellipse rx="45pt" ry="50pt" cx="45pt" cy="50pt" fill="red" />

</svg>