CSS Table Fixed Left Column

I wanted a nice table where the left column stays visible at all times. I kept trying to use a position of "fixed", which is of course incorrect, since that will keep it fixed on the page. What I was actually wanted was "static":

.smart-table{

   overflow: auto;



   td{

      width: 150px;

      min-width: 150px;   

   }

  .first-column{

      position: sticky;

      left: 0;

  }