body{background:#333;margin:0;padding:0}

.navbar-fixed-top {
    min-height: 60px;
}

.navbar-nav > li > a {
    padding-top: 0px;
    padding-bottom: 0px;
    line-height: 60px;
}

@media (max-width: 767px) {
    .navbar-nav > li > a {
    line-height: 20px;
    padding-top: 10px;
    padding-bottom: 10px;}
}

.example { 
    position:absolute;
    left: 0%;
    top: 0%;
    width: 100%;
    height: 95%;
    background: transparent;
    overflow: hidden;
}
.example img { 
    position: absolute;
    background: #666;
    overflow: hidden;
    cursor: pointer;
    left: 100%;
    border-color: #333;
    border-style: solid;
    border-width: 1px;
}
.example span {
    position: absolute;
    color: #efe;
    font-family: verdana;
    font-size: 0px;
    white-space: nowrap;
    left: -999px;
    background: #333;
    /*filter: alpha(opacity=70);
    opacity: 0.7;*/
    background: rgba(0, 0, 0, 0.7);
}