.sidr {
display: block;
position: fixed;
top: 0;
height: 100%;
z-index: 999999;
width: 260px;
overflow-x: hidden;
overflow-y: auto
}
.sidr.sidr-right {
left: auto;
right: -260px;
}
.sidr.sidr-left {
left: -260px;
right: auto;
}