html {
  height: 100%;
  width: 100%;
}

body {
  font-family: Arial, sans-serif;
}

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

.navbar a{
  float: left;
  display: block;
  color: white;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
}

.navbar a:hover {
  background-color: lightgrey;
  color: black;
}

img {
  border-radius: 15px;
  
}

.section, .sectiona{
  background-color: lightgrey;
  border-radius: 15px;
  padding: 15px;
  margin-top: 15px;
}

.sectiona{
  background-color: royalblue;
  color: white;
  text-align: center;
}

.footer {
  background-color: teal;
  border-radius: 15px;
  padding: 15px;
  margin-top: 15px;
  color: white
}