.nav-expand {
    background-image:url("img/menubutton.png");
    background-color:#B31B1B;
    width:48px;
    height:48px;
    border:none;
    cursor:pointer;
}
.collapsed #navitems {
    display:none;
}

.sechead {
    flex-basis:100%;
    width:100%;
    max-width:100%;
}

nav {
    display:block;
}

#navbar ul {
    flex-direction:column;
    -ms-flex-direction:column;
}

.seccontent {
    display:block;
    width:100%;
    margin-left:auto;
    margin-right:auto;
}