Avada Theme - Submenu customization - php

Question

I just started using the Avada Theme in my wordpress site. I need to customize the menu on the left hand side. The items in the submenu should be shown below the parent item, not on next to it. I started by using the side-navigation css styles, but I can't get the child items to work.
.side-nav {
list-style: none;
margin: 0;
padding: 0;
border-top: 1px solid #ededed;
margin-bottom: 20px;
}
.side-nav ul {
list-style: none;
margin: 0;
padding: 0;
}
.side-nav li {
margin: 0;
padding: 0;
}
.side-nav li a {
border-bottom: 1px solid #ededed;
display: block;
height: auto;
font-weight: normal;
font: 14px/39px 'MuseoSlab500Regular', arial, helvetica, sans-serif;
color: #333333;
}
.side-nav li a {
line-height: 1.69em;
padding: 8px 0;
}
.side-nav li a:hover {
background: none;
}
.side-nav li.current_page_item > a {
background: none;
color: #a0ce4e;
}
.side-nav li.current_page_item li a {
color: #333333;
border-bottom: 1px solid #ededed;
}
.side-nav .children {
display: none;
margin-left: 15px;
}
.side-nav .arrow {
display: inline;
margin-left: 0;
}
.side-nav .arrow:after {
position: absolute;
font-size: 14px;
font-family: IcoMoon;
}
.side-nav-left .side-nav {
border-right: 1px solid #ededed;
}
.side-nav-left .side-nav li.current_page_item > a {
border-right: 3px solid #a0ce4e;
}
.side-nav-left .side-nav .arrow {
margin-left: 10px;
}
.side-nav-left .side-nav .arrow:after {
content: '\f105';
}
.side-nav-right .side-nav {
border-left: 1px solid #ededed;
}
.side-nav-right .side-nav li.current_page_item > a {
padding-left: 23px;
border-left: 3px solid #a0ce4e;
}
.side-nav-right .side-nav li a {
padding-left: 25px;
}
.side-nav-right .side-nav .arrow {
margin-right: 10px;
}
.side-nav-right .side-nav .arrow:after {
content: '\f104';
}
.side-nav-right .side-nav .children {
margin-left: 40px;
}
.side-nav-right .side-nav .children a {
padding-left: 0;
}
For better understanding here is a screenshot of what I try to build.
The Image on the left shows the current style of the menu / submenu. The image on the right is showing the side-navigation template which comes with Avada. Out of the Box it's not possible to use the side-navigation style in the main menu. I already posted a question in the Theme-Fursion forum, but they were not able to help me. Maybe you can give me a hint.
Thank you

Answer 1

To achieve this effect you would have to change the positioning of the submenu list from absolute to relative, and adjust it a bit e.g. in this way:
body.side-header-left #side-header #nav > ul > li > ul.sub-menu {
position: relative;
right: auto;
left: auto;
top: auto;
visibility: visible;
opacity: 1;
width: 100%;
height: 0;
overflow:hidden;
}
body.side-header-left #side-header #nav > ul > li:hover > ul.sub-menu,
body.side-header-left #side-header #nav > ul > li.current_page_item > ul.sub-menu {
height: auto;
}