silicon-linux/style.css

body{
    font-family: 'Roboto', sans-serif;
    background: #333;
    color: white
}
a {
    color: white;
}
.iframe {
    display: block;
}
.subtitle {
    font-size: 40px;
    text-align: center;
}

.answer {
    font-style: italic;
    padding: 0;
}
.footer {
    position: fixed;
    left: 0;
    bottom: 0;
    width: 100%;
    color: white;
    text-align: center;
}

.title{
    font-size: 50px;
    text-align: center;
}

#title{
    border: solid white 5px;
}

#navigation{
    padding-top: 0px;
    padding-left: 0px;
    padding-right: 0px;
    padding-bottom: 15px;
    margin: -1px;
}

ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: whitesmoke;
}

li.logo{
    font-weight: bold;
    color: black;
}
li.nav {
    float: left;
    display: block;
    color: black;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
}

a.nav{
    color: black;
    text-decoration: none;
}

li a:hover {
    background-color: gray;
}

.active {
    background-color: #1f8e42;
    color: black;
}

.center {
    text-align: center;
}

.Quesion {
    padding: 0;

}