body {
    background-color: gray;
}

a {
    text-decoration: none;
    color: black;
}

a:hover {
    text-decoration: none;
    color: cyan;
}

.container {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 85vh;
}

.calculadora-corpo {
    width: 320px;
    height: 500px;
    background-color: black;
    margin-top: 5%;
    color: whitesmoke;
    border-radius: 10px;
    padding: 20px;
}

.display {
    display: flex;
    justify-content: right;
    align-items: center;
    width: 300px;
    height: 45px;
    font-size: 30px;
    overflow: hidden;
    margin-top: 15px;
}

.linhas {
    display: flex;
    align-items: center;
    justify-content: space-around;
    flex-direction: row;
    margin-bottom: -15px;
}

.square {
    border: 1px solid whitesmoke;
    border-radius: 10px;
    padding: 15px;
    width: 40px;
    height: 30px;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
}

.square:hover {
    background-color: whitesmoke;
    color: black;
}

.balance {
    width: 50px;
    height: 30px;
    padding: 10px;
}

.material-icons-outlined {
    color: rgb(255, 255, 255);
    transform: rotateX(190deg);
}

#zero {
    width: 120px;
}

footer {
    width: 100%;
    position: fixed;
    bottom: 0;
    text-align: center;
    font-weight: 400;
}