The svg-animate is an animation tag < animate >, which is used to animate a single attribute or property over time.
The ‘animate’ element is used to animate a single attribute or property over time. For example, to make a rectangle repeatedly fade away over 5 seconds, you can specify:
<rect>
<animate attributeType="CSS" attributeName="opacity"
from="1" to="0" dur="5s" repeatCount="indefinite" />
</rect>
Except for any SVG-specific rules explicitly mentioned in this specification, the normative definition for this element is the SMIL Animation specification. In particular,
links: