#menu-t {
    display: none;
}

.ocultar {
    display: none;
}

.motrar {
    display: block !important;
}

@media all and (max-width: 700px) and (min-width: 0px) {

    #menu-t {
        display: block;
    }

    #as-izq {
        display: none;
    }

    .ocultar {
        display: block;
    }
}

@media all and (min-width: 700px) {

    .ocultar {
        display: none;
    }
}