*{
    padding: 0px;
    margin: 0px;
    box-sizing: border-box;
}

.topnav {
  background-color: #333;
  overflow: hidden;
}

.topnav a {
  float: left;
  color: #f2f2f2;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
  font-size: 17px;
}

.topnav a:hover {
  background-color: #ddd;
  color: black;
}

.topnav a.active {
  background-color: #00fe88;
  color: black
}

img{
    width: 100%;
}

footer{
  color: white;
  background-color: #00fe88;
}

footer > small > b{
  text-decoration-line: underline;
  color: black;
}