transiient · February 17, 2021 13:51
diff --git a/flex-sticky-footer-example.html b/flex-sticky-footer-example.html
 <head>
    <link rel="stylesheet"
        href="https://cdnjs.cloudflare.com/ajax/libs/meyer-reset/2.0/reset.min.css" />

    <style>
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        .page-container {
            min-height: 100vh;
            background: #171720;
        }

        header {
            padding: 2rem 4rem;
            background: #a6a6c0;
        }

        footer {
            padding: 2rem 4rem;
            background: #a6a6c0;
        }

        .content-container {
            padding: 4rem;
        }

        h1 {
            font-size: 3rem;
            color: #fcfcfc;
        }

        p {
            margin-top: 2rem;
            font-size: 1.2rem;
            color: #fff;
        }

        p a {
            text-decoration: none;
            color: #e6006c;
            transition: .14s;
        }

        p a:hover {
            color: #e92d85;
        }

        button {
            margin-top: 2rem;
            padding: 0.5rem 1rem;
        }

        span#flex-indicator {
            font-weight: bolder;
            color: #9c9cb0;
        }

        /* Flex Stuff (Toggle) */
        .page-container-flex {
            display: flex;
            flex-direction: column;
        }

        .content-container-flex {
            flex: 1 0 auto;
        }
    </style>
 </head>

 <body>
    <div class="page-container page-container-flex">
        <header>
            <span>Header</span>
        </header>

        <div class="content-container content-container-flex">
            <h1>Sticky Footer Example</h1>
            <p>See the code on <a href="https://gist.github.com/sam-cross/4c25da03d0855cea4a1c2c2dbed08cab">GitHub</a>!
            </p>

            <p>Flex is currently <span id="flex-indicator">on</span>.</p>

            <button onclick="toggleFlex();">Toggle Flex</button>
        </div>

        <footer>
            <span>Footer</span>
        </footer>
    </div>

    <script>
        function toggleFlex() {
            const elPageContainer = document.getElementsByClassName("page-container")[0];
            const elContentContainer = document.getElementsByClassName("content-container")[0];

            elPageContainer.classList.toggle("page-container-flex");
            elContentContainer.classList.toggle("content-container-flex");

            document.getElementById("flex-indicator").innerHTML = (
                elPageContainer.classList.contains("page-container-flex") ? 'on' : 'off'
            );
        }
    </script>
 </body>