body{
    background-image: url("https://dm0qx8t0i9gc9.cloudfront.net/thumbnails/image/rDtN98Qoishumwih/abstract-blue-light-background_SvZPryOnfl_thumb.jpg");
}


img{
    margin-right:auto;
    width:200px;
    height:200px;
}


.t{
    color:white;
}

.intro{
    font-size:25px;
    font-family:Helvetica,sans-serif;
}

.p1{
    font-size:25px;
}

colgroup{
    width:250px;
}

.center{
    margin-left:auto;
    margin-right:auto;
}

u{
    color:yellow;
}


table, th, td{
    border:1px solid black;
    border-collapse:collapse;
}

th, td{
    padding:10px;
}

th{
    font-size:20px;
}






body {
  font-family: "Lato", sans-serif;
}

a.link{
    color:crimson;
}

.sidenav {
  height: 100%;
  width: 0;
  position: fixed;
  z-index: 1;
  top: 0;
  left: 0;
  background-color: #111;
  overflow-x: hidden;
  transition: 0.5s;
  padding-top: 60px;
  text-align:center;
}

.sidenav a {
  padding: 8px 8px 8px 32px;
  text-decoration: none;
  font-size: 25px;
  color: #818181;
  display: block;
  transition: 0.3s;
}

.sidenav a:hover{
  color: #f1f1f1;
}

.sidenav .closebtn {
  position: absolute;
  top: 0;
  right: 25px;
  font-size: 36px;
  margin-left: 50px;
}

@media screen and (max-height: 450px) {
  .sidenav {padding-top: 15px;}
  .sidenav a {font-size: 18px;}
}