css
/* style.css */
body {
  background-color: #f2f2f2;
  color: #000000;
  font-family: 'Open Sans', sans-serif;
  font-weight: 500;
  line-height: 1.5;
  text-align: center;
  margin: 0 0 100px;
  padding: 100px 0;
}

h1 {
  color: #FF0000;
 ประก
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.1px;
  margin: 0;
  padding: 0 0 10px;
  border-bottom: 2px solid #FF0000;
  box-shadow: 0 1px 0 #FF0000;
  text-align: center;
  text-transform: uppercase;
  text-decoration: none;
  text-indent: 0;
  white-space: nowrap;
}

h2 {
  color: #FF0000;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0;
  margin: 0 0 10px;
  padding: 0 0 10px;
  border-bottom: 1px solid #FF0000;
  box-shadow: 0 1px 0 #FF0000;
  text-align: center;
  text-transform: uppercase;
  text-decoration: none;
  text-indent:ประก
  white-space: nowrap;
}

a {
  color: #000000;
  font-size: 16px;
 ประก
  font-weight: 400;
  text-align: center;
  text-decoration: underline;
  text-indent: 0;
  white-space: nowrap;
  background-color: #FF0000;
  border-radius: 10px;
  padding: 5px 5px;
  text-decoration: none;
  display: inline-block;
}

a:hover {
  background-color: #FFC000;
}

body > h1 {
  margin-top: 20px;
}

body > h2 {
  margin: 0 0 20px;
}