#menu {
    background: none;
    width: 100%;
    height: auto;
}
#menu {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}
#menu .link {
    width: 30%;
    margin-bottom: 1em;
}


@media screen and (max-width:600px){
	#safety_backnumber .link {
    width: 44%;
}
}