How to use the bs-css/src/Css.js.marginBottom function in bs-css

// Generated by BUCKLESCRIPT VERSION 5.0.2, PLEASE EDIT WITH CARE
'use strict';

var Css = require("bs-css/src/Css.js");
var React = require("react");
var Gatsby = require("gatsby");

var header = Css.style(/* :: */[
      Css.backgroundColor(Css.hex("db4d3f")),
      /* :: */[
        Css.marginBottom(Css.px(16)),
        /* [] */0
      ]
    ]);

var content = Css.style(/* :: */[
      Css.display(/* flex */-1010954439),
      /* :: */[
        Css.alignItems(/* center */98248149),
        /* :: */[
          Css.justifyContent(/* spaceBetween */516682146),
          /* :: */[
            Css.margin2(Css.px(0), /* auto */-1065951377),
            /* :: */[
              Css.maxWidth(Css.px(1000)),
              /* :: */[
                Css.padding2(Css.px(16), Css.px(24)),

// Generated by BUCKLESCRIPT VERSION 5.0.2, PLEASE EDIT WITH CARE
'use strict';

var Css = require("bs-css/src/Css.js");
var React = require("react");

function str(prim) {
  return prim;
}

var wrapper = Css.style(/* :: */[
      Css.display(/* flex */-1010954439),
      /* :: */[
        Css.marginBottom(Css.px(16)),
        /* [] */0
      ]
    ]);

var img = Css.style(/* :: */[
      Css.width(Css.px(64)),
      /* :: */[
        Css.height(Css.px(64)),
        /* :: */[
          Css.borderRadius(Css.px(32)),
          /* :: */[
            Css.marginRight(Css.px(12)),
            /* [] */0
          ]
        ]
      ]

// Generated by BUCKLESCRIPT VERSION 5.0.2, PLEASE EDIT WITH CARE
'use strict';

var Css = require("bs-css/src/Css.js");
var React = require("react");
var Gatsby = require("gatsby");
var Utils$ReactTemplate = require("./Utils.bs.js");

function str(prim) {
  return prim;
}

var article = Css.style(/* :: */[
      Css.marginBottom(Css.px(32)),
      /* [] */0
    ]);

var link = Css.style(/* :: */[
      Css.textDecoration(/* none */-922086728),
      /* :: */[
        Css.hover(/* :: */[
              Css.textDecoration(/* underline */131142924),
              /* :: */[
                Css.textDecorationColor(Css.red),
                /* [] */0
              ]
            ]),
        /* [] */0
      ]
    ]);