a:link {
  color: red;
  background-color: transparent;
  text-decoration: none;
}

a:visited {
  color: red;
  background-color: transparent;
  text-decoration: none;
}

a:hover {
  color: black;
  background-color: transparent;
  text-decoration: none;
}

a:active {
  color: black;
  background-color: transparent;
  text-decoration: none;
}
h1{
  color: black;  
  font-size: 16px;
}
p{
  color: black;  
}

img {

  max-width: 320px;
  height: auto;
}

* {
  box-sizing: border-box;
}
ul.topnav {
  display: flex;
  list-style-type: none;
  margin: 0;
  padding: 0;
}
ul.topnav li a {
  color: red;
  padding: 4px ;
  text-decoration: none;
}
ul.topnav li a:hover {
  color: black;
}