css
* {
  box-sizing: border-box;
  font-family: Arial, sans-serif;
  -moz-osx-font-stylization: none !important;
}

body {
  background-color: linear-gradient(to bottom, #ff69c0, #ff69c0, #ff69c0);
  margin: 0;
  padding: 0;
  font-family: 'Open Sans', Arial, sans-serifประก
}

h1 {
  color: #fff;
 ประก
  border: 1px solid #000;
  padding: 10px;
  font-size: 24px;
  font-weight: bold;
  text-shadow: none;
  text-align: center;
  text-transform: uppercase;
}

h2 {
  color: #ff69c0;
  border: 1px solid #000;
  padding: 10px;
  font-size: 18px;
  font-weight: bold;
  text-shadow: none;
  text-align: center;
  text-transform: uppercase;
  letter-spacing:ประก
}

h3 {
  color: #fff;
  border: 1px solid #000;
  padding: 10px;
  font-size: 14px;
  font-weight: bold;
  text-shadow: none;
  text-align: center;
  text-transform:ประก
}

p {
  color: #fff;
  border: 1px solid #000;
  padding:ประก
  text-align: justify;
  text-transform: none;
}

a {
  color_goals: none;
  text-decoration: none;
  text-align: center;
}

a:hover {
  color: #fff;
  background-color: #ff69c0;
  border-radius: 4px;
  padding: 10px;
  text-shadow: none;
  text-decoration: none;
}

img {
  width: 100%;
  height: 100vh;
  object-fit: cover;
  background-size: cover;
  background-position: center;
  border: 4px solid #000;
  border-radius: 10%;
  box-shadow: 0 0 5px #000;
}

#logo {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 48px;
  text-align: center;
  font-weight: bold;
  letter-spacing: 2px;
  font-family: Impact, Arial, sans-serif;
  color: #ff69c0;
  background-color: #fff;
  border: 4px solid #000;
  padding: 4px;
  border-radius: 10%;
  box-shadow: 0 0 5px #000;
}

#nav {
  position: fixed;
  top: 50%;
  left: 0;
  width: 20%;
  background-color: #000;
  padding: 10px;
  border: 1px solid #000;
  border-radius: 4px;
  box-shadow: 0 0 5px #000;
  font-size: 14px;
  text-align: left;
  font-family: 'Open Sans', Arial, sans-serif;
  z-index: 1;
}

#nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 14px;
  font-weight: bold;
  text-align: left;
}

#nav li {
  margin-bottom: 10px;
  padding: 0;
  list-style: none;
  border: 1px solid #000;
  border-radius: 4px;
  background-color: #000;
  width: 100%;
  box-shadow: 0 0 5px #000;
  text-align: left;
  text-transform: none;
}

#nav a {
  color: #fff;
  text-decoration: none;
  padding: 10px;
  font-size: 14px;
  text-align: left;
  text-transform: none;
  width: 100%;
  border: 1px solid #000;
  border-radius: 4px;
  background-color: #000;
  box-shadow: 0 0 5px #000;
}

#main {
  position: absolute;
  top: 50%;
  right: 0;
  left: 20%;
  width: 60%;
  background-color: #fff;
  padding: 10px;
  border: 1px solid #000;
  border-radius: 4px;
  box-shadow: 0 0 5px #000;
  font-size: 14px;
  text-align: justify;
  text-transform: none;
}