<html>
<head>
<head>
<title>
html with SVG tag. It stands for scalable vector graphics. It is used for vector based graphics in XML. We use this tag for graphics on web/page.
</title>
</head>
<body>
<svg viewbox="0 0 200 200"><!--</svg><svg width="100" height="100">-->
<!--we always use svg for image size. If we donot, it takes 0,0 by default-->
<rect width="100" height="100">
<animate attributeName="rx" values="0;100;3" dur="5s" repeatCount="indefinite"/>
</rect>
<!--since we are going to put text, we use attributes-->
<!--
->rx is the attribute name
->values=o is starting time
=100 is the speed of animation
=0 is start that animation from 0
->dur=5s is the time for which animation will be in effect and then it repeats
->repeatcount:-It repeats the animation indefinite times
</svg>
</body>
</html>