.side-panel{position:fixed;top:0;right:-400px;width:400px;height:100%;background-color:#f2f7fc;transition:right .5s ease-in-out;padding:35px 20px;z-index:auto;overflow:hidden;margin-top:15px}.side-panel.open{right:0}.close-button{top:5px;left:10px;color:#242424;cursor:pointer;background:none;border:none;z-index:1}