<svg viewBox="0 0 240 80" xmlns="http://www.w3.org/2000/svg">
  <style>
    .small {
      font: italic 13px sans-serif;
    }
    .heavy {
      font: bold 30px sans-serif;
    }

    .Rrrrr {
      font: italic 40px serif;
      fill: red;
    }
  </style>

  <text x="20" y="35" class="small">My</text>
  <text x="40" y="35" class="heavy">cat</text>
  <text x="55" y="55" class="small">is</text>
  <text x="65" y="55" class="Rrrrr">Grumpy!</text>
</svg>