svg textPath example 1

 <svg width="220" height="220">

 <style>
    text {
      font: italic 22px serif;
    }
    tspan {
      font: bold 20px sans-serif;
      fill: red;
    }
  </style>


<defs>
	<path id="path1" d="m10,200 A50,50 0 0 1 200,200" fill="none" stroke="red"></path>
</defs>

<text><textPath href="#path1">You should know <tspan>what I said</tspan>.</textPath></text>

</svg>