body, html {
    margin: 0;
    padding: 0;
    height: 100%;
    width: 100%;
}

.container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: calc(100% - 20px);
    width: calc(100% - 20px);
    border: 10px solid black;
    background: no-repeat bottom right;
    background-size: cover;
    position: relative;
}

.container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1;
}

.logo {
    padding: 40px;
    position: relative;
    z-index: 2;
}

.logo img {
    max-width: 100%;
    height: auto;
}

.button {
    display: inline-block;
    padding: 10px 20px;
    margin-top: 20px;
    background-color: white;
    color: black;
    border-radius: 20px;
    text-decoration: none;
    font-weight: bold;
    position: relative;
    z-index: 2;
}

@media screen and (max-width: 768px) {
    .container {
        width: calc(100% - 10px);
        height: calc(100% - 10px);
    }

    .logo {
        padding: 10px;
    }
}