
body {
  margin: 0;
  padding: 0;
}

#tasuke {
  position: absolute;
  top: 0;
  width: 100%;
}

#top {
  background-color: #006666;
  border-top: 1px solid gray;
  color: white;
}

#menu {
  margin-top: 10px;
  margin-left: 10px;
}

#track {
  clear: both;
  overflow:visible;
  margin-top: 20px;
  margin-left: 20px;
}

#content {
  overflow-y:auto;
  overflow-x:hidden;
  margin-left: 20px;
}

#content2 {
  position: relative;
  margin-left: 20px;
}

#bottom {
  position: relative;
  background-color: #006666;
  color: white;
}

