.mt-0 {
    margin-top: 0 !important;
}

.mb-0 {
    margin-bottom: 0 !important;
}

.mt-15 {
    margin-top: 15px;
}

.mb-15 {
    margin-bottom: 15px;
}

.mt-20 {
    margin-top: 20px;
}

.mt-50 {
    margin-top: 50px;
}

.mb-20 {
    margin-bottom: 20px;
}

.mx-auto {
    margin-left: auto;
    margin-right: auto;
}