h1 {
  margin: .67em 0;
  font-size: 2em;
}
h2 {
  margin: .47em 0;
  font-size: 1em;
}
b {
font-weight:bold;
}
i {
font-style:italic
}
u { 
text-decoration: underline;
}
strike { 
line-through
}