#outerbox{
    height: 750px;
    width: 500px;
    background-color: lightgrey;
    display: flex;
    flex-direction: column;
    align-items: center;
}

#head{
    background-color: rgb(2, 2, 62);
    color: white;
    width: 450px;
    text-align: center;
    margin: 25px;
}

#result{
    height: 95px;
    width: 420px;
    padding: 15px;
    background-color: rgb(235, 235, 235);
    font-size: 50px;
    text-align: right;
    line-height: 3;
}

table{
    width: 450px;
    margin: 25px;
    text-align: center;
    font-size: 20px;
}

td{
    padding: 30px;
    background-color: white;
}

#divide,#multiply,#sub,#add,#equal{
    background-color: #d43920;
    color: white;
}

td:hover{
    background-color: yellowgreen;
}

#divide:hover,#multiply:hover,#sub:hover,#add:hover,#equal:hover{
    background-color: #981c09;
}