.layout {
    height: 100%;
    display: flex;
    flex-direction: column;
    flex: auto;
}
.content {
    flex: auto;
    box-sizing: border-box;
    width: 100%;
}
.header {
    flex-direction: row;
    align-items: center;
    flex: none;
}
.hassider {
    flex-direction: row;
}
.sider {
    position: relative;
    box-sizing: border-box;
    flex: none;
    height: 100%;
}