.mysidebar {
    -moz-transition: right .1s;
    -webkit-transition: right .1s;
    -o-transition: right .1s;
    transition: right .1s;
    width: 500px;
    position: absolute;
    top: 55px;
    bottom: 0;
    right: -500px;
    z-index:120;
    padding:5px;
    padding-top:60px;
    border-left:1px solid lightgray;
    background-color:white;
}

.slide-out {
     -moz-transition: right 1s;
     -webkit-transition: right 1s;
     -o-transition: right 1s;
     transition: right 1s;
     right: 0;
 }