.sum_added{
background-color: #33AAFF;
}
.reset_sum_button{
padding: 4px;
background-color: #DDDDDD;
border: 1px solid #999999;
}
.start_sum_button{
padding: 4px;
background-color: #22FF22;
border: 1px solid #00BB00;
}
.stop_sum_button{
padding: 4px;
background-color: #FF3333;
border: 1px solid #BB2222;
}
.sum_input{
width: 120px;
}