.column {
  float: left;
}


.left {
  width: 90%;
  overflow-x: scroll;
  height: 100%;
  margin-left: 80px;
}

.right{
  width: 25%;
  overflow-x: scroll;
  height: 100%;
  padding-right:20px;
  margin-right: 150px;
}

h1{
  color: black;
  z-index:0;
  font-size: 5em;
  font-weight: 200;
  margin-left: 3vw;
  margin-right: 3vw;
  text-shadow: 3px 3px 4px #777
  font-family: 'arial', sans-serif;
}

h2{

  color: black;
  z-index:0;
  font-size: 1.2em;
  font-weight: 200;
  margin-left: 3vw;
  margin-right: 3vw;
  font-family: 'Roboto', sans-serif;
  text-decoration:none；

}

h3{

  color: black;
  z-index:0;
  font-size: 1.2em;
  font-weight: 200;
  margin-left: 3vw;
  margin-right: 3vw;
  font-family: 'Roboto', sans-serif;

}

h4{

  color: black;
  z-index:0;
  font-size: 0.9em;
  font-weight: 200;
  margin-left: 3vw;
  margin-right: 3vw;
  font-family: 'Roboto', sans-serif;

}

h5{

  color: black;
  z-index:0;
  font-size: 1.2em;
  font-weight: 400;
  margin-left: 3vw;
  margin-right: 3vw;
  font-family: 'Roboto', sans-serif;

}

.video {
position: relative;
padding-bottom: 56.25%;
height: 0;
overflow: hidden;
}
.video iframe,
.video object,
.video embed {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
margin-top: 0vw;
}

@font-face {
  font-family: 'Roboto';
  font-style: normal;
  font-weight: 400;
  src: local('Roboto'), local('Roboto-Regular'),
       url('../fonts/roboto-v20-latin-ext_greek_latin-regular.woff2') format('woff2'), /* Chrome 26+, Opera 23+, Firefox 39+ */
       url('../fonts/roboto-v20-latin-ext_greek_latin-regular.woff') format('woff'); /* Chrome 6+, Firefox 3.6+, IE 9+, Safari 5.1+ */
}