style.css

body{
background-image: url(teste2.png);
background-repeat: no-repeat;
background-size: cover;
background-attachment: fixed;
}

header{
  background-color: white;
}
#logo{
  width: 10%;
  margin-left: 15%;
}
#banner{
width: 100%;
position: relative;
}
ul{
  color: white;
}
nav {
    position: absolute;
    top: 10px;
    right:20;
    margin-left: 45%;
    font-size: 30px; font-family: monospace;

}
nav li {
    display: inline;
}
nav a{
  text-decoration: none;
  font-size: 100%;
}
.home{
  margin-top: 10%;
  text-decoration: none;
    background-color: #b380cc;
    color: white;
    padding: 15px;
    display: inline-block;
    font-family: arial, sans-serif;
    position: relative;
}
.home:after {
    content: '';
    position: absolute;
    border-bottom: solid 5px white;
    bottom: 0;
    left: 0;
    right: 100%;
    transition: all 500ms;
}
.home:hover:after {
    right: 0;
}
em strong {
    color: #FF0000;
}
.aluno1{
  border-bottom: 20px solid #c1e4ef;
  display: inline-block;
  text-transform: uppercase;
  text-align: center;
  font-size: 130%;
  font-weight: bold;
  color: #0f1942;
  margin: 2%

}
.aluno1 img{
  width: 140px!important;
  height: 140px!important;
}
.nome{
    background-color: #c1e4ef;
  }