.center {
    height: 88vh;
    width: 100%;
    text-align: center;
    padding-top: 100px;
    color: white;
    overflow: hidden;
    background: white;  /* fallback for old browsers */
    background: linear-gradient(rgb(128,128,128,0.4), rgba(255,255,255,0.4)), url("../img/collage_lb_image_page6_3_1.png");  /* Chrome 10-25, Safari 5.1-6 */
    background: linear-gradient(rgb(128,128,128,0.4), rgba(255,255,255,0.4)), url("../img/collage_lb_image_page6_3_1.png"); /* W3C, IE 10+/ Edge, Firefox 16+, Chrome 26+, Opera 12+, Safari 7+ */
    background-size: cover;
    background-repeat: no-repeat;
}

body .inner_box {
    position: absolute;
    background:rgba(255,255,255,0.8);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;
    padding: 66px;
    border-radius: 0.5em;
}

body .inner_box h1 {
    font-family: Helvetica, sans-serif;;
    text-align:center;
    font-size:36px;
    font-weight:normal;
    color:#777;
    margin-bottom: 66px;
  }

  body .inner_box h2 {
    font-family: Helvetica, sans-serif;;
    text-align:center;
    font-size:24px;
    font-weight:normal;
    color:#777;
  }

  body .inner_box p {
    font-family: Helvetica, sans-serif;;
    text-align:center;
    font-size: 15px;
    font-weight:normal;
    color:#777;
  }

  body .inner_box button {
    background:#aaa;
    color:#fff;
    text-transform:uppercase;
    font-weight:bold;
    font-size:16px;
    border:none;
    padding:10px 30px;
  }