body{
  background-color:#34656D;
}

.header{
  background-color:#34656D;
  height:10%;
  width:auto;
  margin-left: 5%;
  margin-right:5%;
  color:white;
  font-size:3vw;
  text-align:center;
}

.container-subject{
  margin-left: 5%;
  margin-right:5%;
}

a{
  color: #511281;
  font-size: 3vw;
}

a:hover{
  color: #21094E;
}

h3{
  font-size: 3vw;
  margin:0;
}
div.panel-heading{

}
div.panel-body{
  background-color:#C6FFC1;
}

div.Link_Back2Home{
  background-color:white;
  color:#FFFBDF;
  margin: auto;
}

img{
  background-color:black;
  width: 100%;
  height: auto;
}