.sidenav {
height: 100%;
width: 0;
position: fixed;
z-index: 11;
top: 0;
right: 0;
background-color: #111;
overflow-x: hidden;
transition: 0.5s;
padding-top: 60px;
}

.sidenav a {
padding: 8px 8px 8px 32px;
text-decoration: none;
font-size: 25px;
color: #818181;
display: block;
transition: 0.3s;
}

.sidenav a:hover {
color: #f1f1f1;
}

.sidenav .closebtn {
position: absolute;
top: 5px;
right: 10px;
font-size: 36px;
margin-left: 50px;
}

@media screen and (max-height: 450px) {
.sidenav {padding-top: 15px;}
.sidenav a {font-size: 18px;}
}

.menu_small{
    font-size: 30px;
    cursor: pointer;
    float: right; margin: 10px;
    display: none;
}

.small_menu_button{
    width: -webkit-fill-available;
    background: #111;
    border: 0;
    color: #00aeff;
    cursor: pointer;
    padding: 10px;
    font-size: 20px;
    font-weight: bold;
}

.small_menu_button:hover{
    color: #245aaa;
}