body {
    font-family: Arial, sans-serif;
    background-color: rgb(191, 225, 255); 
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

/* Container */
.container {
    text-align: center;
    padding: 20px;
    border-radius: 12px;
}

/* Title */
h1 {
    margin-bottom: 20px;
}

/* Calculator box */
.calculator {
    background-color: #a56969;
    padding: 15px;
    padding-top: 35px;
    border-radius: 12px;
    min-width: 275px;
    width:50%;
    display: inline-block;
}

/* Screens */
#miniScreen, 
#screen {
    width: 230px;
    padding: 6px;
    text-align: right;
    font-size: 80%;
    border: 2px solid black;
    background-color: #e0e0e0;
    border-radius: 6px;
}

#screen {
    font-size: 28px;
    margin-bottom: 15px;
}

/* Buttons table */
table {
    margin: auto;
}

button {
    width: 55px;
    height: 55px;
    margin: 5px;
    font-size: 20px;
    background-color: orange;
    border-radius: 12px; 
    cursor: pointer;
    font-weight: bold;
}

button:hover {
    background-color: darkorange;
}
button .small-text {
    font-size: 0.5em; 
    display:block; 
    font-weight: 5;
    line-height: 1; 
}