.flex-container {
  height: 650px;
  width: 100%;
  display: -webkit-flex;
  /* Safari */
  display: flex;
  overflow: hidden;
  border-radius: 50px;
}
@media screen and (max-width: 768px) {
  .flex-container {
    flex-direction: column;
  }
}

.flex-title {
  color: #f1f1f1;
  font-size: 40px;
  color: #FAA81A;
  font-weight: bold;
  -webkit-transition: all 500ms ease;
  -moz-transition: all 500ms ease;
  -ms-transition: all 500ms ease;
  -o-transition: all 500ms ease;
  transition: all 500ms ease;
}

.flex-about {
  opacity: 0;
  color: #f1f1f1;
  line-height: 1.3;
  -webkit-transition: all 500ms ease;
  -moz-transition: all 500ms ease;
  -ms-transition: all 500ms ease;
  -o-transition: all 500ms ease;
  transition: all 500ms ease;
}

.flex-slide {
  -webkit-flex: 1;
  /* Safari 6.1+ */
  -ms-flex: 1;
  /* IE 10 */
  flex: 1;
  cursor: pointer;
  -webkit-transition: all 500ms ease;
  -moz-transition: all 500ms ease;
  -ms-transition: all 500ms ease;
  -o-transition: all 500ms ease;
  transition: all 500ms ease;
  border-right: 4px solid #FFF;
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.flex-slide:last-child {
  border-right: none;
}

@media screen and (max-width: 768px) {
  .flex-slide {
    overflow: auto;
    overflow-x: hidden;
  }
}

@media screen and (max-width: 768px) {
  .flex-slide p {
    font-size: 2em;
  }
}

@media screen and (max-width: 768px) {
  .flex-slide ul li {
    font-size: 2em;
  }
}

.flex-slide:hover, .flex-slide.active {
  -webkit-flex-grow: 3;
  flex-grow: 3;
}

.home {
  background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/769286/lake-macquarie-71208_1920.jpg);
  background-size: cover;
  background-position: center center;
  background-attachment: fixed;
}
.about {
  background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/769286/beach-2089959_1280.jpg);
  background-size: cover;
  background-position: center center;
  background-attachment: fixed;
}

.contact {
  background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/769286/lake-696098_1920.jpg);
  background-size: cover;
  background-position: center center;
  background-attachment: fixed;
}

.work {
  background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/769286/forest-208517_1280.jpg);
  background-size: cover;
  background-position: center center;
  background-attachment: fixed;
}