In the
<symbol> element, the definition is set for one symbol. Multiple definitions can need to be in multiple
<symbol> elements.
The symbol is used by the use of the
use element.
Size (and other attributes) can change per use case.
<symbol id="bubble" width="1" height="1" viewBox="0 0 2 2">
<circle fill="#f48e8e" stroke="none" cx="1" cy="1" r="1" />
</symbol>
<use href="#bubble" x="176" y="233" width="22" height="22" />