Horizontal aligned menu via the WordPress custom menu widget

custom-menu-widget.css

/*
 * Footem Custom Menu Widget
 */
#footer-menu-widget {
	padding: 1% 0;
	background-color: transparent;
	color: #294e6b;	
}

#footer-menu-widget h2.widget-title {
	color: #294e6b;
	margin: 0.2em 0 0.5em;
}

#footer-menu-widget .widget {
	padding-bottom: 0.5em;
}

#footer-menu-widget .widget ul li {
	border-top: 0;
}

#footer-menu-widget .widget li {
	padding-bottom: 0;
	border-bottom: 0;
	margin-bottom: 0;
}
#footer-menu-widget .widget li a {
	-webkit-box-shadow: inset 0 -1px 0 rgba(255, 255, 255, 0);
	box-shadow: inset 0 -1px 0 rgba(255, 255, 255, 0);
	color: #294e6b;
}
 
.footer-menu-inner {
	max-width: 1140px;
	width: 100%;
	margin: 0 auto;
	padding: 0 20px;
}

.footer-menu-inner {	
	display: flex;
	justify-content: center;
	flex-wrap: wrap;
	list-style: none;	
}

.footer-menu-inner .widget {
	flex: 1;
	padding-left: 4%;	
	-webkit-align-self: top; /* Safari 7.0+ */
    align-self: top;
	margin: 0;
	z-index: 9;
}

.footer-menu-inner .widget:not(:empty) {
    margin-top: 0;
}

.footer-menu-inner .widget:first-child {
	padding-left: 0;
}
.footer-menu-inner .widget:last-child {
    padding-right: 0;
}

#footer-menu-widget .widget_nav_menu {text-align:center}

#footer-menu-widget .widget_nav_menu .widget-title {
	font-size: 32px;
	font-size: 2rem;
	font-weight: 400;
	margin: 0 0 10px;
	text-transform: none;
}

#footer-menu-widget .widget_nav_menu .menu > .menu-item {
	border-top: 0;
	display: inline-block;
	font-size: 0.687rem;
	font-weight: 600;
	letter-spacing: 0.1518em;
	text-transform: uppercase;
}

#footer-menu-widget .widget_nav_menu .menu > .menu-item:not(:last-of-type):after {
    color: rgba( 0, 0, 0, .8 );
    content: "\2022";
    position: relative;
    right: -8px;
	margin-right: 10px;
}

#footer-menu-widget .widget_nav_menu .menu > .menu-item a {
	color: #294e6b;
	padding: 8px 10px;
	-webkit-box-shadow: inset 0 -1px 0 rgba(255, 255, 255, 0);
	box-shadow: inset 0 -1px 0 rgba(255, 255, 255, 0);
}
#footer-menu-widget .widget_nav_menu .menu > .menu-item a:focus, 
#footer-menu-widget .widget_nav_menu .menu > .menu-item a:hover {
	color: #f8f8f8;
	background-color: #901116;
	border-radius: 4px;
}

#footer-menu-widget .widget_nav_menu .menu .sub-menu {
	display: none;	
}
#footer-menu-widget .widget_nav_menu .menu > .menu-item:focus > .sub-menu, 
#footer-menu-widget .widget_nav_menu .menu > .menu-item:hover > .sub-menu {
	display: none;	
}