html,
body {
    height: 100%;
    padding-top: -300px;
}

img {
    max-width: 100%;
}

@media only screen and (max-device-width: 480px) {

    

    }

/* cover */

#cover {
    background: #222 url('../img/jelly.jpeg') center center no-repeat;
    background-size: cover;
    color: white;
    height: 100%;
    text-align: center;
    display: flex;
    align-items: center;
}

#cover-caption {
    width: 100%;
}

.section-content {
    padding: 5rem 0;
}

#about {
    background: url('../img/jellyfish.jpeg') center center no-repeat;
    background-size: cover;
}

.about-text {
    background: rgba(0,0,0,0.8);
    color: white;
    padding: 1.875rem;
}

#footer-main {
    background: #222;
    color: white;
    font-size: 0.8rem;
    padding: 2.5rem 0;
}

.jumbotron {
  padding-top: 6rem;
  padding-bottom: 6rem;
  margin-bottom: 0;
  background-color: #fff;
  background-repeat: no-repeat;
  background-position: bottom center;
  background-size: cover;
}

.jumbotron-heading {
  font-weight: 300;
}

.jumbotron .container {
  max-width: 40rem;
  background: rgba(255,255,255,0.2);
  padding: 2rem;
  color: white;
}

.jumbotron p {
    color: white;
    text-shadow: 0 0 10px rgba(0,0,0,0.5);
}