<!doctype html>
<style>
div {
    height:100px; width:100px;
}
</style>
<div><svg id="svg1" height="100" width="100" viewbox="0 0 100 100" overflow="hidden">
  <path d="M210 10 L90 10 L90 90" fill="blue"/>
</svg></div>

<div><svg id="svg2" height="100" width="100" viewbox="0 0 100 100" overflow="scroll">
  <path d="M210 10 L90 10 L90 90" fill="blue"/>
</svg></div>

<div><svg id="svg3" height="100" width="100" viewbox="0 0 100 100" overflow="visible">
  <path d="M210 10 L90 10 L90 90" fill="blue"/>
</svg></div>