Hamburger Menu hides in Mobile

Sorry - I thought we were working on mobile for the whole time as the title of the post suggested.

Edit your CSS from:

.main-navigation .main-nav ul li.slideout-toggle a {
    background-color: #00aced;
}

to

.main-navigation .main-nav ul li.slideout-toggle a {
    background-color: #00aced !important;
}

should work.

Awesome Leo, It works. But on Hover, the background is not changing to another color..

But its ok, As it is working for now without hover anyway.

No problem :)