h1{
    font-size: 25px;
    text-align: center;
    color: blue;
}
.input-text{
    width: 70px;
}
#id-button-calc{
    font-size: 16px;
}
#id-button-calc1{
    font-size: 16px;
}
#id-button-check{
    font-size: 16px;
}
#id-button-calc2{
    font-size: 16px;
}
#id-button-calc3{
    font-size: 16px;
}
tr{
    height: 50px;
}
td{
    text-align: center;
}
.red{
    color: red;
}
table{
    background-color: #EEEEEE;
}