*
{
   margin: 0;
   padding: 0;
}

header
{
    background-image: linear-gradient(rgba(0,0,0,0.5),rgha(0,0,0,0.5),url(Evaluation box-business-celebrate-296878.jpg);
    height: 100vh;
    background-size: <cover:
    background-position: center;
}

.main-nav
{
    float: right;
    list-style: none;
    margin-top: 30px;
}

.main-nav li
{
    display: inline-block;
}

.main-nav li a
{
    color: white;
    text-decoration: none;
    padding: 5px 20px;
    font-family: "Roboto", sans-serif;
    font-size: 15px;
}

.main-nav li.active a
{
    border: 1 px solid white;
}

.main-nav li a:hover
{
    border: 1px solid white;
}
body
{
    font-family: monospace;
}

.row
{
    max-width: 1200px;
    margin: auto;
}

h1
{
    color: white'
    text-transform: uppercase;
    font-size: 70px;
    text-align: center;
    margin-top: 275px;
}