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

html, body {
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: Arial, sans-serif;
    width: 100%;
}

.background-cover {
    background: url('bgcc.jpg') no-repeat center center fixed;
    background-size: cover;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

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