align items in flexbox code example

Example 1: how center content in css by using flex

display: flex;
    width: 60%;
    justify-content: center;
    margin: 0 auto;

Example 2: center div css flex

section {
  width: 200px;
  border: 1px solid #2d2d2d;
  display: flex;
  justify-content: center;
}

Example 3: flex align top css

align-items: flex-start | flex-end | center | baseline | stretch

.container {
  display: flex;
  align-items: flex-start;
}

Example 4: flex box align items

.container {
  justify-items: center;
}