Answers for "center contents of div css"

center a div in css

.container {
  display: flex;
  justify-content: center;
  align-items: center;
}

center div css

.center {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

center div css

.container {
  display: grid;
  place-items: center;
}