header {
    background-color: #282828;
    color: #FFFFFF;
}
header h2{
    color: #FFFFFF;
    padding: 0.4em;     
    display: inline-block;
}
nav{
    display: inline-block;
}

nav li{
    list-style: none;   
    display: inline-block;
    margin-bottom: 0.2em;
}
nav ul{
    position: relative;
}
nav ul ul li{
    float: none;
    display: block;
    
}
nav ul ul{
    position: absolute;
    font: 0/0 serif;
    z-index: -1;
    transition: all 0.5s;
}
nav ul li:hover ul {
    font: inherit;
    z-index: auto;       
}
nav a {
    margin-bottom: 0.2em;
    width: 8em;
    display: block;
    padding: 0.4em;
    text-decoration: none; 
    font-weight: bold;
    border: 1px solid white;
   /* border-radius: 10px;*/
    box-shadow: 0 3px 10px white inset;
    color: white; 
    background-color: #282828;
    transition: background-color .25s ease-in;
}
nav a:focus, nav a:hover, nav span{
    background-color: #7B7B7B;;
    transition: background-color 0.01s;  
}