body {
    background-color: #ffffff;
    zoom: 80%;
}

main {
    display: flex;
    justify-content: center;
    padding: 4%;
}

img {
    height: 975px;
    margin-top: -20px;
    margin-left: 3px;
}

.container {
    background-color: #000000;
    padding-top: 252px;
    padding-right: 5px;
    border-radius: 45px;
    width: 410px;
    height: 600px;
    margin-top: 46px;
    margin-right: -5px;
    position: absolute;
}

.panel {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    width: 100%;
    height: 70px;
    margin-bottom: 30px;
    margin-left: -5px;
}

.panel p {
    color: #ffffff;
    overflow: auto;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 80px;
    margin: 0;
    padding: 0 15px 0 0;
}

.btn {
    border-radius: 50%;
    border-style: none;
    font-size: 34px;
    width: 83px;
    height: 83px;
    margin: 5px;
}

.btn.especial {
    color: #000000;
    margin-left: 10px;
    background-color: #a5a5a5;
}

.btn.especial:hover {
    background-color: #c8c8c8;
}

.btn.number, .btn.decimal {
    color: #ffffff;
    margin-left: 10px;
    background-color: #343434;
}

.btn.number:hover, .btn.decimal:hover {
    background-color: #575757;
}

.operator {
    color: #ffffff;
    margin-left: 10px;
    background-color: #ff9f0a;
}

.operator:hover {
    background-color: #ffad32;
}

#zero {
    border-radius: 50px;
    width: 180px;
}

#zero p {
    text-align: left;
    margin-top: 23px;
    margin-left: 27px;
}

footer {
    text-align: center;
    font-size: 30px;
    margin: 200px;
}

.github-link {
    text-decoration: none;
    color: #ff9f0a;
}