.Calculator {
    background: black;
    height: 480px;

}

table {
    border: 11px solid blue;
    margin-left: auto;
    margin-right: auto;

}


input[type = "button"] {
    width: 100%;
    padding: 20px 40px;
    background-color: green;
    color: white;
    font-size: 24px;
    font-weight: bold;
    cursor: pointer;
    border: none;
    border-radius: 5px;


}

td .clear {
    background-color: orange;
}

input[type = "text"] {
    padding: 20px 30px;
    font-size: 24px;
    font-weight: bold;
    border: none;
    border-radius: 5px;
    border: 2px solid black;


}