body { margin: 2%;
  	  background-color:#F0F0F0;
  	}
  	header {   	  position: fixed;
  	  left:0;
  	  right:0;
      top:0;
      
      background-color:#fff;  	
      margin-bottom:20px;
      padding-bottom: 8px;
}
img {
   border-radius:10px;

}
th{
    padding-right:7%;
      padding-left:7%;
}
td{
  padding-left:7%;
  padding-right:7%;
}
  	nav{
  	  text-align:center;
      margin-left:8px;
      margin-right:5px;
      font-size:1.8em;
  	   background-color: #F0F0F0;
  	    border-radius:10px;

  	}

  	a{
  	  color:black;
  	  text-align:center;
  	  text-decoration:none;
  	  padding-right:30px;
  	  padding-left:30px;

  	}
  	a:hover{
  	  color:red;

  	}