* {
  background-color: rgb(120,170,230);
  font-family: 'Lucida Sans', 'Lucida Sans Regular', 'Lucida Grande', 'Lucida Sans Unicode', Geneva, Verdana, sans-serif;
  /* border: 1px solid red; */
}

h1 {
  text-align: center;
  font-size: 80px;
  background-color: rgb(120,170,230);
  color: yellow;
}

li.index{
  font-size: 30px;
  color: rgb(120,170,230);
}

img {
  display: block; 
  margin-left: auto;
  margin-right: auto;
  width: 40%;
}

h3 {
  text-align: center;
  font-size: 30px;
}

a{
  color: black;
  text-decoration: none;
  padding: 12px 100px;
  margin: 12px;
  display: inline-block;
}

a:hover{
  background-color: yellow;
}