option to your blogger.
1. Log in to blogger and Go to Design >> Page Element.
2. Click Add Gadget and select 'HTML/Javascript'
3.Paste below code.
Falling Colored Stars
<script type="text/javascript" src="https://sites.google.com/site/bdlab12/bdlab-blogspot-com/ColoredStars.txt" />
</script>
Falling fire Stars
<script type="text/javascript" src="https://sites.google.com/site/bdlab12/bdlab-blogspot-com/fireStars.txt" />
</script>
Falling Stars
<script type="text/javascript" src="https://sites.google.com/site/bdlab12/bdlab-blogspot-com/Stars.txt" />
</script>
Falling snow
<script type="text/javascript" src="https://sites.google.com/site/bdlab12/bdlab-blogspot-com/snow.txt" />
</script>
Falling Hearts
<script type="text/javascript" src="https://sites.google.com/site/bdlab12/bdlab-blogspot-com/LoveHeart-1-dance.txt" /> </script>
Falling Heart
<script type="text/javascript" src="https://sites.google.com/site/bdlab12/bdlab-blogspot-com/LoveHeart-1-lights.txt" /> </script>
Falling butterfly
<script type="text/javascript" src="https://sites.google.com/site/bdlab12/bdlab-blogspot-com/butterfly-1-dance.txt" /> </script>
4. Now Click save you are done.