.screenshot img {box-shadow: 2px 2px 15px #202020; }

div.prev {
    width: 37%;
    float: left;
    text-align: left;
}
div.up {
    width: 26%;
    float: left;
    text-align: center;
    margin-left: auto;
    margin-right: auto;
}
div.next {
    width: 37%;
    float: right;
    text-align: right;
}
div.navlinks {
  width: 100%;
  margin-left: auto;
  margin-right: auto;
}


div.example {
  background-color: #d0d0d0;
  margin-bottom: 30px;
}
div.example h2, div.example h3 {
  padding-top: 30px;
  padding-bottom: 0px;
  padding-left: 40px;
  padding-right: 40px;
  margin: 0;
}
div.example p {
  padding-top: 10px;
  padding-bottom: 0px;
  padding-left: 40px;
  padding-right: 40px;
  margin: 0;
}
div.example img {
  padding-left: 0;
  padding-right: 0;
  padding-top: 20px;
  padding-bottom: 35px;
}
div.example_top_row img {
  padding-left: 0;
  padding-right: 0;
  padding-top: 20px;
  padding-bottom: 0;
  margin: 0;
}
div.example_bottom_row img {
  padding-left: 0;
  padding-right: 0;
  padding-top: 0;
  padding-bottom: 35px;
  margin: 0;
}