#main {
  width: 800px;
  margin: 0 auto;
}

.vertical-container {
  height: 300px;
  display: -webkit-flex;
  display:         flex;
  -webkit-align-items: center;
          align-items: center;
  -webkit-justify-content: center;
          justify-content: center;
}

body {
  background-color: black;
  color: white;
  font-size:100%; 
  line-height:1.5;
  font-family: "Verdana", Geneva, sans-serif;
}

img {
  float: left;
}

.center {
  text-align: left; width: 800px; border: 1px solid black; margin: 0 auto;
}

.clearfix {
  overflow: auto;
}

.footer {
  font-size: x-small;
}