body, html {
    height: 100%;
}

html {
      background: url(img/bg.jpg) no-repeat center center fixed;
      -webkit-background-size: cover;
      -moz-background-size: cover;
      -o-background-size: cover;
      background-size: cover;
    }

    ul {
      position: absolute;
      top: 0px;
      right: 0px;

        list-style-type: none;
        margin: 0;
        padding: 0;
        overflow: hidden;
        //background-color: #333333;
    }

    li {
        float: left;
    }

    li a {
        display: block;
        color: white;
        text-align: center;
        padding: 16px;
        text-decoration: none;
    }