.mb-15-{
    margin-bottom: -15px;
}
.mr-15-{
    margin-right: -15px;
}
.ml-15-{
    margin-left: 15px;
}
.my-30{
    margin-top: 30px;
    margin-bottom: 30px;
}
.my-60{
    margin-top: 60px;
    margin-bottom: 60px;
}
.mb-40 {
    margin-bottom: 40px;
}
.input-text-center {
    text-align: center;
}
.b-text {
    font-weight: bold;
}
.bg-unset{
    background-color: unset;
}