html {
    background: url('kitten_bg.jpg') no-repeat center center;
    min-height: 100%;
    background-size: cover;
}

body {
    min-height: 100%;
}

html body {
    height: 100%;
    overflow: hidden;
    background: rgba(255, 255, 255, 0);
}

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

.navbar-default {
    background-color: rgba(0, 0, 0, 0.6);
}

.btn-block {
    height: 100px;
}

.button-row {
    padding: 100px;
}
footer {
    position: absolute;
    right: 0px;
    left: 0px;
    bottom: 0px;
    height: 25px;
    background-color: rgba(0, 0, 0, 0.6);
}

.footer-text {
    padding: 10px;
    color: #aaaaaa;
}