flex move right code example

Example 1: flex force div right side

.parent {
  display: flex;
}
.child {
  margin-left: auto;
  order: 2;
}

Example 2: flex align children to side

flex-direction: column;
align-items: flex-start; //left
align-items: center; //center
align-items: flex-end; //right

Example 3: flex item right

header > div:nth-child(3) {    margin-left: auto;}