html, body {
  font-family:Arial;
  margin: 0;
  padding: 0;
  scroll-behavior: smooth; /* <--- */
} 
.narrow-section-content {
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}
.section-content {
  max-width: 1500px; 
  margin-left: auto; 
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}
.navbar {
  padding-left: 20px;
  padding-right: 20px;
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  border-bottom: 1px solid #eee;
  align-items: center;
  max-width: 1460px;
  margin-left: auto;
  margin-right: auto;
}
.nav-menu {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: row;
  align-content: center;
  align-items: center;
  
  
}
.nav-menu li {
  padding-top: 10px;
  padding-bottom: 10px;
  margin-right: 20px;
}
.nav-menu.top-menu li a {
  text-decoration: none;
  color: #666;
}
.nav-menu.breadcrumbs {
  margin-top: 20px;
}
.nav-menu.breadcrumbs li {
  font-size: 15px;
}
.nav-menu.breadcrumbs li a {
  text-decoration: none;
  color: #666;
}
.nav-menu li.active a {
  text-decoration: none;
  color: #666;
}
.nav-menu li.end-item {
  align-self: flex-end;
  margin-right: 0;
}
h1 {
  font-size: 60px;
  margin-top: 10px;
  margin-bottom: 10px;
}

.search-text-input {
  width: calc( 100% - 20px );
  font-size: 15px;
  padding: 10px;
}

.main-action-btn {
  background-color: #c36;
  border: 2px solid #c36;
  color: white;
  text-decoration: none;
  cursor: pointer;
  font-size: 25px;
  padding: 20px 30px;
  margin-right: 10px;
  display: block;
}
.secondary-action-btn {
  background-color: white;
  border: 2px solid #666;
  color: #666;
  font-size: 25px;
  padding: 20px 30px;
}

h1.lead-header {
  text-align: center; font-size: 40pt;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  
}
h1.normal-header {
  font-size: 55px;
}

.normal-text {
  font-size: 16pt;
  line-height: 150%;
}

ul.normal-text li {
  line-height: 170%;

}

h2.lead-header {
  line-height: 130%; 
  text-align: center; 
  font-size: 25pt; font-weight: normal; margin-top: 0px;
  padding-left: 20px;
  padding-right: 20px;
}

h3 {
  font-size: 25pt;
  margin-top: 30px;
}

.code-sample {
  width: 1460px; 
  max-width: 100%;
  margin-left: auto; 
  margin-right: auto;
}
.code-sample iframe {
  border: 0;
  max-width: 100%;
  max-height: 100vh;
  width: 1460px;
  height: 950px;
}

.about-menu {
  display: flex; 
  align-items: flex-start; 
  justify-content: center; 
  margin-bottom: 30px; 
  font-size: 20px;
}

h1.lead-header {
  text-align: center; 
  margin-top: 40px; 
  font-size: 40pt; 
  margin-bottom: 40px;
}

@media (max-width: 768px) {
  .hide-on-mobile {
    display: none;
  }
  .about-menu {
    display: none;
  }
  h1 {
    font-size: 35pt;
  }
  h1.lead-header {
    font-size: 25pt;
    margin-bottom: 20px;
  }
  h1.normal-header {
    font-size: 25pt;
  }
  
  h2 {
    font-size: 20pt;
  }
  h2.lead-header {
    font-size: 18pt;
  }
  .normal-text {
    font-size: 14pt;
  }

  
  .code-sample iframe {
    border: 0;
    max-width: 100%;
    
    
    height: 500px;
  }
}

.code-sample iframe.full-window-iframe {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  width: 100%;
  height: 100%;
  transition: all 500ms;
}