#wrapper {
    width: 750px;
    border: 1px solid #000;
}

body {
    font-family: Arial, Helvetica, sans-serif;
}

header {
    background: #CC3333;
    padding-left: 100px;
}

nav {
    background: #0000CC;
    color: #ffffff;

}

nav a {

    color: white;
    text-decoration: none;
}

nav ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    display: flex;
    color: #ffffff;

}

nav li {
    width: 180px;
    text-align: center;
    color: #ffffff;


}

#content {
    background: red;
    display: flex;

}

main {
    background-color: #FFFFFF;
    width: 600px;
}

aside {
    background: #FFFFCC;
    width: 200px;
    text-align: center;



}

footer {

    background: #0000CC;
    color: #ffffff;
    padding-left: 300px;

}