Hi
It due to the changes in markup of menu module in J4, you can add this custom css:
#s5_bottom_menu_wrap ul.mod-menu a:hover {
text-decoration: none;
}
#s5_bottom_menu_wrap ul.mod-menu li {
padding-right: 7px;
padding-left: 7px;
font-size: 1.1em;
font-weight: 300;
color: #747474;
float: left;
position: relative !important;
}
#s5_bottom_menu_wrap ul.mod-menu li a {
font-size: 15px;
color: #747474;
}
into the file: root/templates/your_light_church_template/css/custom.css (Create this file if it doesn't exist now)