Exemple pour D3
<!DOCTYPE html>
<!-- Add a title -->
<h1>First html document</h1>
<!-- Add a bit of text -->
<p>This is my first sentence</p>
<!-- Add a svg shape -->
<svg>
<circle style="fill: #babcda" stroke="black" cx=50 cy=50 r=40></circle>
</svg>
Perfect Platypus