.jumbotron {
    background-image: linear-gradient(
            to bottom, transparent, transparent, #000000
    ),url("a.jpg");

    background-size: cover;
    //height: 500px;
}
body {background-color: black}
.linkedin {
     background: #0e76a8;
     color: white;
 }

.email{color:white}

p{
    color:white;
}

h1{
    color:white
}