h1 {
  text-align: center;
}
h2 {
  margin: 100px;
}
h3 {
  margin: 100px;
}
img {
  margin: 100px;
  padding: 1px;
}
ol.a {
  background: #e6f0ff;
  list-style-type: upper-roman;
  margin: 100px;
  padding: 10px;
}
Video {
  width: 600px;
  height: 600px;
}
ul.a {
  background: #e6f0ff;
  margin: 100px;
  list-style-position: inside;
  list-style-type: square;
  padding: 10px;
}
body {
font-size: 3em;
  position: relative;
}
.breadcrumb {
  filter: contrast(100%);
}
p {
  filter: contrast(100%);
  margin-left:100px;
  text-align:left;
  width: 1900px;
}
p > label {
  display: block;
}
.navbar-nav > li{
list-style: none;
margin-bottom: 5px;
padding-left: 10px;
padding-right: 10px;
}
.page-link {
  margin-bottom: 40px;
  filter: contrast(100%);
}
div {
filter: contrast(100%);
}