A page with a side menu. The basics is that it is on the side. When a small device sees the page the sidebar is collapsed and a collapse icon apears.

html

<div class="d-lg-none bg-primary text-xs-right">
    <div class="container">
        <a href="#side-menu" data-toggle="collapse" class="btn btn-default bg-primary text-white">
            <i class="fa fa-life-ring"></i>
            Show menu
        </a>
    </div>
</div>
<div class="container py-3">
    <div class="navbar-expand-lg">
        <div class="row ">
            <div class="col-lg-3 col-12 bg-info text-white collapse navbar-collapse py-1" id="side-menu">
                <div>
                    <h3>
                        Sidemenu
                    </h3>
                    <p>
                        Here you can add a side menu, Or just add some info for the user. It is shown on large screens
                        and hidden on small.
                    </p>
                    <p>
                        Lorem ipsum dolor sit amet, consectetur adipisicing elit. Commodi corporis eligendi et fugiat
                        harum ipsa odit quis quod repellendus rerum, sequi similique suscipit, voluptate? A accusamus
                        aperiam autem dicta hic.
                    </p>
                    <p>
                        Lorem ipsum dolor sit amet, consectetur adipisicing elit. At dolorem minus nesciunt, non
                        perspiciatis repudiandae sapiente! Dolores enim possimus voluptas! Ad fugit itaque, iure officia
                        quibusdam repudiandae ut voluptatibus voluptatum!
                    </p>
                </div>
            </div>
            <div class="col-lg-9 col-12 py-1">
                <h3>
                    Content
                </h3>
                <p>
                    Lorem ipsum dolor sit amet, consectetur adipisicing elit. Ducimus facere illum ipsam minima nobis
                    numquam. Architecto atque cupiditate dolorem ea nesciunt, praesentium qui, rem repellat repudiandae,
                    sapiente tempora totam voluptatem!
                </p>
                <p>
                    Lorem ipsum dolor sit amet, consectetur adipisicing elit. Aliquid aspernatur consequatur corporis
                    cumque delectus dignissimos doloribus, ducimus et eum facilis illo iste minima nostrum obcaecati
                    odit praesentium recusandae vero voluptas.
                </p>
            </div>
        </div>
    </div>
</div>