SVG Circle
<svg width="100" height="100">
<circle cx="50%" cy="50%" r="10" fill="red"/>
</svg>
TC5550
<svg width="100" height="100">
<circle cx="50%" cy="50%" r="10" fill="red"/>
</svg><svg width="100" height="100">
<circle cx="50" cy="50" r="40" stroke="green" stroke-width="4" fill="yellow" />
</svg><svg viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg">
<circle cx="50" cy="50" r="50"/>
</svg><svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'>
<circle cx="50" cy="50" r="50"/>
</svg><link rel="icon" type="image/svg+xml" href="data:image/svg+xml,<svg xmlns=%22http://www.w3.org/2000/svg%22 width=%22256%22 height=%22256%22 viewBox=%220 0 100 100%22><rect width=%22100%22 height=%22100%22 rx=%2250%22 fill=%22%230a6f33%22></rect><text x=%2250%%22 y=%2250%%22 dominant-baseline=%22central%22 text-anchor=%22middle%22 font-size=%2290%22></text></svg>" />