h1{
  font-family: helvetica;
  text-align: center;
  padding-top: 30px;
}

img{
  display: block;
  margin-left: auto;
  margin-right: auto;
  width: 40%;
  padding: 10px;
}

p{
  font-family: helvetica;
  text-align: center;
  font-size: 20px;
  padding: 10px;
}

iframe{
  display: block;
  margin-left: auto;
  margin-right: auto;
  width: 60%;
  padding-top: 70px;
  padding-bottom: 100px;
}

a{
  text-align: center;
  font-family: helvetica;
  font-size: 20px;
}

a:link{
  color: black;
}

a:visited{
  color: red;
}