css - Why `margin: 1 auto;` doesn't work? -


why margin: 0 auto; works margin: 1 auto; doesn't? there hackish way fix this?

      .container {         width: 220px;         /* margin: 0 auto; */ /* <-- works.*/         margin: 1 auto; /*<-- error. how fix??? */         padding: 16px;         display: block;         border: 2px solid black;        }
<div class="container">    <p style="text-align: center;">lorem ipsum dolor sit amet, consectetur adipisicing elit. sint non cumque @ minima voluptates totam suscipit, esse vitae recusandae fugit, alias quibusdam odio sunt iure velit, perferendis voluptas ratione quo!</p>  </div>

sorry stupid question upd: i'm sure answer useful searchers have similar troubles, plz not delete.

because 0 universal, 1 depends on unit, , since no unit specified browser doesn't know do.


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