body{
    background-color:rgb(285, 185, 00)
}
.container, .row{
    margin-top: 10px !important;
}
.span{
    margin-top:10px;
}
#functionalOperands button{
    border-radius: 20px;
    border-color: green;
    color: white;
}

#functionalOperands .row{
    margin-top: 5px !important;
}
.roundedBorder{
    border-radius: 25px;;
}