Help with responsive dropdown navigation

Hi Guys and Gals!
I´m making my first responsive theme for wordpress and I´m having trouble making
the navigation responsive.
I´ve found lot´s of great tutorials but can not make them work
What i have for my navigation in css is this:

Code (text):

#navi {

    display: block;

    margin: 0;

    width: 100%;

    position: relative;

    float:left;

    background: #730000;

    box-shadow: 0px 2px 2px #530000;

    }

#navi ul {

    list-style: none;

    margin: 0;

    padding:0;

}

#navi…

Help with responsive dropdown navigation

See original post by HDaddy