body {
    font-family: 'Arial', sans-serif;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
     background: linear-gradient(to bottom, #7898f8, #4854ac); 
    color: #000; 
}

.main-navigation {
  background: linear-gradient(to bottom, #333, #111); 
    color: #fff;
	overflow: hidden;
}


.main-navigation a {
	color:  white;
	padding:  12px 30px;
	text-decoration:  none;
	transition:  background 250ms ease-in-out;

}

.main-navigation a:hover, .main-navigation a:focus {
	background:  darkslateblue;


}




.video{
	padding-top: 20%; padding-bottom: 20%;
}

p { font-size: 1.3em;

}