Grouping
You can use <g> to group elements.
All of <g>'s attributes are inherited to its children.
SVG elements
<g>
Groups elements.
| HTML PLAYGROUND
<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100">
<g fill="white" stroke="green" stroke-width="5">
<circle cx="40" cy="40" r="25" />
<circle cx="60" cy="60" r="25" />
</g>
</svg>
| LIVE PREVIEW
References