* {
  margin: 0;
  padding: 0;
  font-size: 0;
}

#container {
  margin: auto;
  text-align: center;
  border-left: 2px solid gray;
  border-right: 2px solid gray;
}

.entry {
  display: inline;
  white-space: nowrap;
  width:200px;
  height: 200px;
  vertical-align: top;
}