$("#right-button").click(function() {
  event.preventDefault();
  $(".table-responsive").animate(
    {
      scrollLeft: "+=300px"
    },
    "slow"
  );
});

$("#left-button").click(function() {
  event.preventDefault();
  $(".table-responsive").animate(
    {
      scrollLeft: "-=300px"
    },
    "slow"
  );
});