Small snippets for css

Ways to create

using aspect-ratio

div {
  background: #09f;
  width: 500px;
  aspect-ratio: 1/1;
  border-radius: 100%; /* can be 50% */
}

div {
  background: #09f;
  aspect-ratio: 1/1;
  height: 100px;
  border-radius: 100%; /* can be 50% */
}