  <style>
            :root {
                /* These variables exist so you can make quick and simple style changes without much CSS knowledge */

                /* applies to all areas */
                --font-family: sans-serif;
                --font-size: 14px;
                --line-height: 1.3em;
                --font-color: black;
                --link-color: #22506A;
                --link-text-decoration: none;

                /* main content (between sidebars) */
                --content-padding: 25px;
                --content-bg-color: #65CAFE;

                /* header */
                --header-height: 150px;
                --header-background: url('https://pbs.twimg.com/media/EkTRaaMUwAAfh7I?format=jpg&name=large');
                --header-margin-bottom: 0px;

                /* sidebar */
                --sidebar-margin: 10px;
                --sidebar-width: 150px;
                --sidebar-padding: 15px;
                --sidebar-bg-color: #65CAFE;

                /* footer */
                --footer-height: 30px;
                --footer-bg-color: #65CAFE;

                /* navbar */
                --navitems-alignment: center;
                --space-between-navitems: 20px;
                --navbar-margin-bottom: 10px;
                --nav-bg-color: #65CAFE;

                /* container */
                --container-width: 800px;
                --container-bg-color: #3DA2B7;

                /* controls the gap between the content and the footer */
                --row-gap: 5px;

                /* To add scrollbars to your sidebars, just make the height a px value and change overflow to 'auto' */

                --sidebar-height: 100%;
                --sidebar-overflow: hidden;
                --background-color: #3DA2B7;
            }

            html,
            body {
                margin: 0;
                padding: 0;
                background-color: var(--background-color);
                font-family: var(--font-family);
                font-size: var(--font-size);
                line-height: var(--line-height);
                color: var(--font-color);
            }

            body a {
                color: var(--link-color);
                font-weight: bold;
                text-decoration: var(--link-text-decoration);
            }

            #main-container {
                max-width: var(--container-width);
                margin: 0 auto;
                background-color: var(--container-bg-color);
            }

            .flex {
                display: flex;
                margin-bottom: var(--row-gap);
            }

            .content-wrap {
                margin-top: var(--content-margin-top);
            }

            #content-container {
                width: 60%;
                margin-bottom: var(--row-gap);
                background-color: var(--content-bg-color);
            }

            #left-sidebar {
                width: var(--sidebar-width);
                margin-right: var(--sidebar-margin);
                margin-bottom: var(--row-gap);
                height: var(--sidebar-height);
                overflow: var(--sidebar-overflow);
                background-color: var(--sidebar-bg-color);
            }

            #right-sidebar {
                width: var(--sidebar-width);
                margin-left: var(--sidebar-margin);
                margin-bottom: var(--row-gap);
                height: var(--sidebar-height);
                overflow: var(--sidebar-overflow);
                background-color: var(--sidebar-bg-color);
            }

            #header-contained {
                height: var(--header-height);
                margin-bottom: var(--header-margin-bottom);
                background-image: var(--header-background);
                background-position: center center;
            }

            #footer {
                height: var(--footer-height);
                text-align: center;
                color: var(--font-color);
                background-color: var(--footer-bg-color);
            }

            #header-full {
                display: none;
                height: var(--header-height);
                margin-bottom: var(--header-margin-bottom);
                background-image: var(--header-background);
                background-position: center center;
            }

            #navbar-contained {
                margin-bottom: var(--row-gap)
            }

            #navbar-full {
                display: none;
            }

            .nav {
                margin-left: 0;
                text-align: var(--navitems-alignment);
                margin-top: 0;
                margin-bottom: var(--navbar-margin-bottom);
                padding-top: 1em;
                padding-bottom: 1em;
                background-color: var(--nav-bg-color);
            }

            .nav li {
                display: inline-block;
                padding-right: var(--space-between-navitems);
            }

            .wrapper {
                padding: var(--content-padding);
                padding-top: var(--sidebar-padding);
            }

            .sidebar-wrapper {
                padding: var(--sidebar-padding);
                height: var(--sidebar-height);
                overflow: var(--sidebar-overflow);
            }

            .footer-wrapper {
                padding: 5px;
            }

            /* To keep your site RESPONSIVE, make sure this variable matches the width for --container-width UNLESS --container-width is 100% - if it's 100%, you'll need to manually input a breakpoint. */
            @media only screen and (max-width: 800px) {
                .flex {
                    flex-wrap: wrap;
                }

                #left-sidebar {
                    width: 100%;
                    display: block;
                    order: 2;
                    margin-right: 0;
                    margin-bottom: 10px;
                }

                #right-sidebar {
                    width: 100%;
                    display: block;
                    order: 3;
                    margin-left: 0;
                }

                #content-container {
                    width: 100%;
                    display: block;
                    order: 1;
                    margin-bottom: 10px;
                }

            }
        </style>
        <div id="header-full" style="display: block;"></div>
        <div id="navbar-full" style="display: none;">
            <ul class="nav">
                <li><a href="">Home</a></li>
                <li><a href="#">Link</a></li>
                <li><a href="#">Link</a></li>
                <li><a href="#">Link</a></li>
                <li><a href="#">Link</a></li>
                <li><a href="#">About</a></li>
            </ul>
        </div>
        <div id="main-container">
            <div id="header-contained" style="display: none;"></div>
            <div id="navbar-contained" style="display: block;">
                <ul class="nav">
                    <li><a href="">Home</a></li>
                    <li><a href="#">Link</a></li>
                    <li><a href="#">Link</a></li>
                    <li><a href="#">Link</a></li>
                    <li><a href="#">Link</a></li>
                    <li><a href="#">About</a></li>
                </ul>
            </div>
            <div class="content-wrap flex alignment">
                <div id="left-sidebar" style="display: block;">
                    <div class="sidebar-wrapper">Left Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod
                        tempor incididunt ut labore et dolore magna aliqua. Venenatis tellus in metus vulputate eu scelerisque. Duis
                        at tellus at urna condimentum mattis pellentesque id. Mauris sit amet massa vitae tortor condimentum lacinia
                        quis vel. Sit amet est placerat in egestas erat imperdiet sed euismod. Erat nam at lectus urna duis
                        convallis convallis tellus id. Cursus eget nunc scelerisque viverra mauris in aliquam sem fringilla. Urna et
                        pharetra pharetra massa massa ultricies mi.</div>
                </div>
                <div id="content-container" style="flex-grow: 1;">
                    <div class="wrapper">Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt
                        ut labore et dolore magna aliqua. Venenatis tellus in metus vulputate eu scelerisque. Duis at tellus at urna
                        condimentum mattis pellentesque id. Mauris sit amet massa vitae tortor condimentum lacinia quis vel. Sit
                        amet est placerat in egestas erat imperdiet sed euismod. Erat nam at lectus urna duis convallis convallis
                        tellus id. Cursus eget nunc scelerisque viverra mauris in aliquam sem fringilla. Urna et pharetra pharetra
                        massa massa ultricies mi. Semper viverra nam libero justo laoreet sit amet cursus sit. Quam lacus
                        suspendisse faucibus interdum posuere lorem. Quam quisque id diam vel quam elementum pulvinar. Venenatis
                        cras sed felis eget velit aliquet sagittis. Fringilla urna porttitor rhoncus dolor purus non enim. Eleifend
                        donec pretium vulputate sapien nec sagittis aliquam. Fames ac turpis egestas sed tempus urna et. Nisl vel
                        pretium lectus quam id leo in. Ornare arcu odio ut sem nulla pharetra diam. Dictum sit amet justo donec enim
                        diam vulputate ut. Et malesuada fames ac turpis egestas maecenas.</div>
                </div>
                <div id="right-sidebar" style="display: block;">
                    <div class="sidebar-wrapper">Right Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod
                        tempor incididunt ut labore et dolore magna aliqua. Venenatis tellus in metus vulputate eu scelerisque. Duis
                        at tellus at urna condimentum mattis pellentesque id. Mauris sit amet massa vitae tortor condimentum lacinia
                        quis vel. Sit amet est placerat in egestas erat imperdiet sed euismod. Erat nam at lectus urna duis
                        convallis convallis tellus id. Cursus eget nunc scelerisque viverra mauris in aliquam sem fringilla. Urna et
                        pharetra pharetra massa massa ultricies mi.
                    </div>
                </div>
            </div>
            <div id="footer" style="display: block;">
                <div class="footer-wrapper">footer</div>
            </div>
        </div>
    
    