body {
/* 	background-color : red; */
	background-image: url('../images/yes.png');
	background-repeat: no-repeat;
	background-attachment: fixed;
	background-size: 100% 100%;
    color: blue;
	text-align: center;
	background-color: grey;
	color: black;
}

.jumbotron {
    background-color: lightgrey;
    margin-left: 10%;
    margin-right: 10%;
    padding: 3%;
}