body {
  font-family: sans-serif;
  margin: auto;
  max-width: 700px;
}

.navbar {
  background-color: #313236;
  border-radius: 2px;
  max-width: 800px;
}

.navbar a {
  color: #aaa;
  display: inline-block;
  font-size: 15px;
  padding: 10px;
  text-decoration: none;
}

.navbar a:hover {
  color: #ffffff;
}

.explain{
  font-size: 300%;
  font-family: 'Courier New', Courier, monospace;
  color: red;
}

img {
  width: 600px;
  height: 500px;
  object-fit: cover;
  display:flex;
  justify-content: center;
  margin : auto;
}

.myinfo {
  background-color: violet;
}