#SidenavL a
{
    /*position:absolute;*/
    position:fixed;
    left:0px;
    transition: 0.3s;
    padding:10px;
    width:auto;
    /*overflow:hidden;*/
    text-decoration: none;
    font-size: 20px;
    color: #fff;
    border-radius: 0 5px 5px 0;
    z-index:10;
}
#SidenavR a
{
    position:absolute;
    right:0px;
    transition: 0.3s;
    padding:10px;
    width:auto;
    /*overflow:hidden;*/
    text-decoration: none;
    font-size: 20px;
    color: #fff;
    border-radius: 5px 0px 0px 5px;
    z-index:10;
}
.tab { top:300px; background-color: #400080; }