table{
    width: auto;
    margin: auto;
    padding: auto;
    background: #CCC;
    border: none;
    border-radius: 10px;
    padding: 20px;
}
h1{
    text-align: center;
    font: 3em sans-serif;
    padding: auto;
    top: 0%;
    color: #ffffff;
}
body{
    background-color: #444;
}
#input, #output{
    height: 50px;
    font-size: 200%;
    text-align: right;
    border: none;
    width: 360px;
}
#input{
    border-radius: 3px;
    box-shadow: 2px black;
    color: #000;
}
#output{
    border-radius: 3px;
    box-shadow: 2px black;
    color: #444;
}
input[type=button]{
    height: 60px;
    width: 60px;
    color: #444;
    background-color: lightgoldenrodyellow;
    margin: 5px;
    border-radius: 3px;
    border: none;
    font-size: 1.5em;
}
input[type=button]:hover{
    background: #ffeaeadc;
    cursor: pointer;
}