body{
    background:#f5f7fb;
    font-family: 'Segoe UI', sans-serif;
}
.sidebar{
    position: fixed;
    top: 0;
    left: 0;
    width: 230px;
    height: 100%;
    border-right: solid 1px #d8d8d8;
}
.main-wrapper{
    padding-left: 230px;
}
img{
    max-width: 100%;
    height: auto;
}