body {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: auto;
    margin-top: 20px;
    width: 80%;
    max-width: 600px;
    min-width: 300px;
    border: solid;
    font-family:'Courier New', Courier, monospace;
    font-size: 90%;
    font-weight: bold;
    padding: 1px;
    background-color: rgba(5, 78, 204, 0.2);
    box-shadow: 5px 5px 10px rgb(0, 0, 0);
    font-size: 18px;
}

input{
    width: 100px;
    text-align: center;
}

button{
    font-size: 20px;
    font-weight: bold;
    box-shadow: 1px 1px 1px rgb(0, 0, 0);
    margin: 5px;
}

button:hover{
    box-shadow: 0px 0px 0px rgb(0, 0, 0);
    cursor: pointer;
}