* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.container {
    background: crimson;
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.card {
    background: cyan;
    width: 80%;
    height: 80vh;
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    align-items: center;
    padding: 10px;
}

#btn {
    padding: 10px;
    background: greenyellow;
    outline: none;
    border-radius: 5px;
    color: orangered;
    font-weight: 500;
    text-shadow: 0 0 20px whitesmoke;
}