.center{
    text-align: center;
    align-items: center;
    align-content: center;
}
.m0-5rem{
    margin: 0.5rem;
}
.m1rem{
    margin: 1rem;
}
.m1-5rem{
    margin: 1.5rem;
}
.m2rem{
    margin: 2rem;
}
.m3-5rem{
    margin: 2.5rem;
}
.m3rem{
    margin: 3rem;
}
.rtl{
    direction: rtl;
}