png image glow~

<style>
#image01 {
filter: drop-shadow(1px 1px 0 black) drop-shadow(-1px 1px 0 black) drop-shadow(0 2px 0 black) drop-shadow(0 -1px 0 black) drop-shadow(0 1px 1.5px black) drop-shadow(0 -1px 1.5px black) drop-shadow(1px -1px 1.5px black) drop-shadow(-1px -1px 1.5px black);
}
</style>