body {
    background-image: linear-gradient(90deg, #062067, #062067);
    margin: 0;
}

#display {
    max-width: 450px;
    width: 100%;
    padding: 20px;
    font-size: 50px;
    text-align: right;
    border: none;
    background-color: #7fcab9;
    margin-top: 5px;
    cursor: default;
    border-radius: 25px;
    color: #f5f5f5;
}

#calculator {
    display: grid;
    gap: 10px;
    padding: 10px;
    justify-content: center;
    align-items: center;
    background-color: #02082b;
    /* border: 2px solid rgb(255, 255, 255); */
    border-radius: 25px;
    max-width: 500px;
    height: 100%;
    width: 100%;
    margin: 0 auto;
    margin-top: 50px;
    overflow: hidden;
}

#knop {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    padding: 10px;
}

Button {
    width: 100px;
    height: 100px;
    background-color: #000000;
    border: 2px solid #7fcab9;
    border-radius: 50%;
    font-size: 60px;
    cursor: pointer;
    font-family: "Courier New", Courier, monospace;
    font-weight: bold;
    color: #f5f5f5;
    gap: 10px;
}

Button:hover {
    background-color: #7fcab9;
}

button:active {
    background-color: #99cec1;
}

.credit {
    text-align: right;
    color: #f5f5f5;
    font-size: 30px;
    margin-bottom: 0px;
    font-family: "Courier New", Courier, monospace;
}