align item center flex

1	display: flex;
2    width: 60%;
3    justify-content: center;
4    margin: 0 auto;

1
2  .flex-container {
3  display: flex;
4  height: 300px;
5  justify-content: 
6  center;
7  align-items: center;
8}
9  

1section {
2  width: 200px;
3  border: 1px solid #2d2d2d;
4  display: flex;
5  justify-content: center;
6}

1.container {
2  justify-items: center;
3}

1.parent{
2	display: flex;
3    align-items: center;
4    height: 500px;
5}