.flex {
    display: flex;
}
.center {
    display: flex;
    justify-content: center;
    align-items: center;
}
.no-select {
    user-select: none;
}
.hidden {
    display: none !important;
}
.full-height {
    height: 100%;
}
.full-width {
    width: 100%;
}