.border{
    border: 2px solid red;
    margin: 3px;
}
.flex{
    display: flex;
}
.justify-centre{
    justify-content: center;
}
.align-centre{
    align-items: center;
}
.rounded{
    border-radius: 7px;
}
.m-1{
    margin: 5px;
}
.p-1{
    padding: 10px;
}