* { 
    box-sizing: border-box; 
}

/****   HEADER   ****/

header { 
    background-color: black;
    color: #aa2929;
    font-family: Lucida Console;
    padding: 1em;
}
header h3 { 
    text-align: center;
    font-family: Lucida Console;
    color: #c0c0c0;
}

/****   NAV   ****/

nav { 
    box-sizing: border-box;
    background-color: rgba(128, 128, 128, 0.712);
    font-size: 1.2em;
    text-align: center;
    float: left;
    height: 100%;
    width: 130px;
    /*padding-top: 140px;*/
    position: fixed;
    margin-left: 0;
}
nav a { 
    text-decoration: none; 
}
nav a:link { 
    color: #fafdff; 
}
nav a:visited { 
    color: #fafdff; 
}
nav a:hover     { 
    color: #e08d20; 
}
nav ul { 
    display: flex;
    flex-direction: column;
    list-style-type: none; 
    margin: 0;
    padding: 0; 
    padding-left: 10%;
    padding-right: 10%; 
}
nav li { 
    border-bottom: 1px solid #344873;
    padding: .5em 1em;
    width: 100%; 
}
.button {
    text-align: center;
    /*padding-left: 100px;*/
    margin: 35px;
    color: #e08d20;
}

/****   BODY   ****/

body { 
    background-color: #000;
    background-image: url("galaxy.jpg");
    color: #FFF;
    font-family: Verdana, Arial, sans-serif;
    margin: 0;
}
#wrapper { 
    background-color: #2c2925;
    margin: auto;
    width: 80%; 
}
main {
    margin-left: 100px;
    display: contents;
}

/****   FOOTER   ****/

footer { 
    background-color: #2c2925;
    font-size: .70em;
    font-style: italic;
    padding: 1em;
    text-align: center;
}
footer a:link { 
    color: #fafdff; 
}
footer a:visited { 
    color: #fafdff; 
}
footer a:hover { 
    color: #e08d20; 
}

/****   ELEMENTS   ****/

h1 {  
    font-size: 1.5em;
    text-align: center;
} 
h2 {
    padding-top: 50px;
    padding-bottom: 70px;
    text-align: center; 
    color: #FFFF;
    font-family: Georgia, serif; 
}
h3 { 
    font-family: Georgia, serif; 
    color: #aa2929;
}
h4 {
    padding-top: 20px;
    padding-left: 40px;
    text-decoration: underline;
}
p {
    margin: 20px;
    line-height: 2em;
}
a {
    color: inherit;
}
span p {
    border: 5px solid #000;
}

/****   IMG CLASS   ****/

.img-src { 
    width: 500px;
    float: right;
    margin-right: 50px;
    border: 3px solid #000;
}