html {
  width: 100%;
  height: 100%;
  padding:0;
  margin:0;
}

body {
    background-image: url('_mg_6283_2.jpg');
    background-repeat: no-repeat;
    background-position: bottom center;
    background-size: 100%;
    color: #2f2f2f;
    width: 100%;
    height: 100%;
    font-family: 'Open Sans', sans-serif;
    font-weight: 700;
    text-align: center;
    padding:0;
    margin:0;
}

.entry-content {
  position: fixed;
  top: 50%;
  left: 50%;
  /* bring your own prefixes */
  transform: translate(-50%, -50%);
}

p {
    font-size: 5vw;
    margin:0;
    color: #000;
}

.big {
    margin-bottom: 30px;
    color: #2f2f2f;
}

@media only screen and (min-width: 768px) {
    body {
        background-size: cover;
        background-image: url('_mg_6283.jpg');
        background-position: top center;
    }
}