flex.css

.flex-col-5{
    flex: 5;
}

.flex-col-4{
    flex: 4;
}

.flex-col-3{
    flex: 3;
}

.flex-col-2{
    flex: 2;
}

.flex-col-1{
    flex: 1;
}

.flex{
    display: flex;
}

.flex-column{
    flex-direction: column;
}

.flex-between{
    justify-content: space-between;
}

.flex-around{
    justify-content: space-around
}

@media(max-width: 992px){
    .sm-block{
        display: block;
    }
}

@media(max-width: 768px){
    .xs-block{
        display: block;
    }
}