.uk-offcanvas-bar {
    position: absolute;
    top: 0;
    bottom: 0;
    left: -270px;
    box-sizing: border-box;
    width: 270px;
    padding: 20px 20px;
    background: #fff;
    overflow-y: auto
}

.ia-sign-in{
    color:#fff;
}

.ia-offcanvas-width{
    width: 20%;
}