html{
    box-sizing: border-box;
}

body {
    margin: 0;
    background: #000;
}

.container {
    height: 100vh;
    width: 100vw;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: url('https://media3.giphy.com/media/llmbmfvWgRw6nG31wl/giphy.gif?cid=ecf05e47hfg83oxg0h6m47f74jtpnzi1mtiy2cbjcvwd4mek&rid=giphy.gif&ct=g');
    background-size: cover;
    background-position: left center;
    background-repeat: no-repeat;
}

button {
    cursor: pointer;
    outline: none;
    width: 200px;
    height: 50px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 20px;
    color: #fff;
    background: #000;
    border: none;
    border-radius: 5px;
    box-shadow: 2px 2px 20px 10px rgba(0, 0, 0, 0.2);
}

.footer {
    position: relative;
    display: flex;
    justify-content: space-around;
    align-items: center;
    color: whitesmoke;
}

a {
    text-decoration: none;
    margin: 2px;
}

.icon {
    color: #fff;
    font-size: 20px;
}

button:hover {
    filter: brightness(50%);
}

button:active {
    transform: scale(0.98);
}

button:disabled {
    cursor: default;
    filter: brightness(20%)
}

/* Media Query: Tablets or Smaller */
@media screen and (max-width: 1000px) {
    .container {
        background-position: center center;
        background-size: cover;
    }

    button {
        box-shadow: 5px 5px 30px 20px rgba(0, 0, 0, 0.5);
    }
}