header
{
  position: fixed;
  background-color: yellow;
  color: darkblue;
  width: 100%;
  margin: 0px;
  left: 0px;
  top: 0px;
  font-family:'Lucida Sans', 'Lucida Sans Regular', 'Lucida Grande', 'Lucida Sans Unicode', Geneva, Verdana, sans-serif
}

h1
{
  margin: 5px;
}

nav
{
  position: fixed;
  width: 25%;
  height: 100%;
  top: 48px;
  left: 0;
  background: darkblue;
  font-family:Arial, Helvetica, sans-serif;
  margin: 0px;
  padding: 0px;
  padding-top: 15px;
}



ul1 {
  padding: 0px;
  margin: 0px;
  margin-left: 5px;
  display: block;
  list-style: none;
  border-style: none;
  list-style-type: none;
  height: 100%;
}

li1 {
  padding: 0px;
  display: block;
  width: 100%;
  background-color: darkblue;
  border-style: none;
}

a {
  
  display: block;
  color: white;
  font-weight: bold;
  box-sizing: border-box;
  transition: background .3s ease;
  border: none;
  width: 100%;
  text-decoration: none;
  border-bottom: 0px solid rgb(236, 236, 236);
  margin-left: 10px;
  margin-top: 15px;
  margin-bottom: 15px;
}


li .current
{
  color: red;
}

a:hover {
  background-color: darkblue;
  color: yellow;
}


main {
  font-family: Arial, Helvetica, sans-serif;
  box-sizing: border-box;
  position: fixed;
  overflow: hidden;
  overflow-y: scroll;
  border-top-left-radius: 2px;
  box-shadow: 0 0 2px rgba(0,0,0, .6);
  top: 48px;
  right: 0;
  bottom: 0;
  width: 75%;
  background: #fff;
  padding: 5px;
}

#welcome
{
  background-color: white;
  text-align: center;
}

#this
{
  background-color: darkblue;
  color: yellow;
}


#simplelink
{
  display: contents;
}

#headerlink
{
  display: contents;
  color: darkblue;
}



#flowtop
{
  position: fixed;
  left: 80%;
  top: 20%;
}

#flowbottom
{
  position: fixed;
  left: 80%;
  top: 60%;
}