CSS box-shadow

<img src="https://kit.svelte.dev/_app/immutable/assets/svelte-logo.5c5d7d20.svg" style="width:300px">

img {
   border:solid 1px gray;
   box-shadow: rgba(0,0,0,0.1) 3px 5px 7px; /*black의 0.1%로 우측:3px, 하단:5px 번짐:7px */
}