* {
	padding: 0;
	margin: 0;
	box-sizing: border-box;
	font-family: 'Roboto', sans-serif;
    color: #212F3D;
}

@media screen and (max-width: 990px) {
    #side_nav {
        margin-left: -250px;
        position: fixed;
        min-height: 100vh;
        z-index: 1;
    }
    #side_nav.active {
        margin-left: 0;
    }

}