body{
  background: url('background1.jpg') no-repeat center center fixed;
  background-size: cover;
  color: #ffffff;
  margin: 0;
  padding: 0;
}

  main {
    text-align: center;
    padding: 20px;
}

h1 {
    color: #ffffff;
    font-size: 50px;
    text-shadow: 0 0 20px #fff;
}

h2 {
  color: #ffffff;
  font-size: 50px;
  text-shadow: 0 0 20px #fff;
  font-family:'TH Sarabun New';
}

.center-img {
    width: 80%;
    max-width: 600px;
    border-radius: 20px;
    box-shadow: 0px 15px 20px rgba(0, 0, 0,0.2)
}

p {
    color: #ffffff;
    font-family:'TH Sarabun New';
    font-size: 30px;
    text-align: left;
    margin: 0 auto;
    max-width: 1000px;
}

h3 {
  font-family:'TH Sarabun New' ;
  font-size: 40px;
  color: #ffffff;
  text-shadow: 0 0 20px #fff;
}

.glassmorphism {
  width: 100%;
  height: 30%;
  border-top: 2px solid #FFFFFF75;
  border-left: 2px solid #FFFFFF75;
  box-shadow: 5px 5px 12px #00000035;
  background: #FFFFFF25;
  border-radius: 15%;
  overflow: hidden;
  backdrop-filter: blur(4px);
}
footer {
  padding: 20px;
  text-align: center;
}

footer .contact {
  font-family: 'TH Sarabun New';
  font-size: 20px;
}

footer .icon {
  vertical-align: middle;
  width: 38px;
  height: 38px;
  margin-right: 10px;
}
footer .icon1 {
  vertical-align: middle;
  width: 50px;
  height: 50px;
  margin-right: 10px;
}

footer a {
  color: #DCDCDC;
  text-decoration: none;
  font-family: 'TH Sarabun New';
}

footer a:hover {
  text-decoration: underline;
}

.creditce{
  font-family: 'TH Sarabun New';
  font-size: 20px;
}

.topnav {
  overflow: hidden;
  background-color: #18263b;
  border: 1px solid #d1cfcf;
}

.topnav a {
  float: left;
  display: block;
  color: #f2f2f2;
  text-align: center;
  padding: 25px 30px;
  text-decoration: none;
  font-size: 22px;
}

.topnav a:hover {
  background-color: #c4b3b1;
  color: black;
}

.topnav a.active {
  background-color: #d24646;
  color: white;
}

.topnav .icon {
  display: none;
}

@media screen and (max-width: 710px) {
  .topnav a:not(:first-child) {display: none;}
  .topnav a.icon {
    float: right;
    display: block;
  }
}

@media screen and (max-width: 710px) {
  .topnav.responsive {position: relative;}
  .topnav.responsive .icon {
    position: absolute;
    right: 0;
    top: 0;
  }
  .topnav.responsive a {
    float: none;
    display: block;
    text-align: left;
  }
}