html {
background-image: url('photo/2015/11/15/21/31/lego-1044891_960_720.jpg');
background-size: cover;
background-attachment: fixed;
}

.page-header {
background-color: #222222;
color: #FFFFFF;
padding: 20px;
}

.page-content {
background-color: #222222;
padding: 30px;
width: 700px;
margin: 0 auto;
margin-top: 30px;
color: #FFFFFF;
font-size: 14px;
line-height: 130%;
}

.gallery {
background-color: #222222;
padding: 30px;
width: 700px;
margin: 0 auto;
margin-top: 30px;
text-align:center;
}

.gallery img {
height: 100px;
border-width: 5px;
border-color: #FFFFFF;
border-style: solid;
box-shadow: 3px 3px 5px 6px #000000;
margin: 5px;
}

a:link    {color:green; background-color:transparent; text-decoration:none}
a:visited {color:pink; background-color:transparent; text-decoration:none}
a:hover   {color:red; background-color:transparent; text-decoration:underline}
a:active  {color:yellow; background-color:transparent; text-decoration:underline}

.main-menu {
background: #FF0000; } /*  */

.main-menu a {
background-color: #00FF00;
border-color: #00DD00;
font-weight: bold;
display: inline-block;
padding: 5px 10px;
}

.main-menu a:hover {
background-color: #00DD00; /*  */
color: #FFFFFF;
}