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        <p>Regardless of the document's volume footer must be on the bottom of window or below. Flex is the simplest way to do it.</p>
            <li>CSS only, simple and standard.</li>
            <li>Only five (or six) CSS directives.</li>
            <li>Header and footer height is dependent only on its content. Can be fixed as well.</li>
            <li>Flex model is applied only to container and its direct childs. It has zero impact on other elements.</li>


                    /* LAYOUT */

    body {
        min-height: 100vh;
        display: flex;
        flex-direction: column;

    footer {
        flex: 0;

    main {
        flex: 1;


    body {
        margin: 0;

    footer {
        background-color: #666;