html {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    overflow-y: scroll;
}

body {
    height: 100%;
    margin: 0;
    padding: 0;
    background-color: #fff;
    color: #000;
    font-family: Verdana, Arial, sans-serif;
    font-size: 16px;
}

#loginbox {
    position: fixed;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    background-color: #000;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

#loginbox #keybox {
    box-sizing: content-box;
    border: #fff 3px solid;
    border-radius: 50%;
    box-shadow: 0 0 5em #000;
    display: block;
    width: 128px;
    height: 128px;
    position: absolute;
    bottom: 3em;
    left: 50%;
    margin-left: -64px;
}

.box {
    box-sizing: border-box;
    max-width: 800px;
    margin: 2em auto;
    padding: 2em;
    background-color: #fcfcfc;
    border: #ccc 1px solid;
    overflow: hidden;
}

#keybox img {
    animation: loaderrotation 10s infinite linear;
}

@keyframes loaderrotation {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(359deg);
    }
}