margin-left: auto and margin-right: auto not working on input

Question

I have an input in a form that I am trying to align in the center. Usually margin-left:auto and margin-right: auto fail to respond when display:

Answer 1

I found the solution for you

you should specify element width

input {
  display: block;
  width: 60px;
  margin: 10px auto;
  padding: 3px;
}