#page-header {
  padding: 120px 20px 35px;
}

#what-is-shinyjs {
  text-align: center;
  color: #074f66;
  margin-top: 50px;
  font-size: 30px;
  font-weight: bold;
}

#shinyjs-desc {
  font-size: 22px;
  text-align: center;
  margin: 30px auto 0;
}

#shinyjs-without {
  margin-top: 4px;
  font-style: italic;
}

#shinyjs-separator {
  margin: 50px auto;
  border: 0;
  width: 50%;
  border-top: 4px double #aaa;
}

#what-it-does {
  padding: 0 20px;
  font-size: 20px;
  margin: 40px auto;
  max-width: 1200px;
  text-align: center;
}

#what-it-does-title {
  font-size: 30px;
  color: #074f66;
  font-weight: bold;
  margin-bottom: 15px;
}
#what-it-does .fa {
  margin-right: 5px;
  position: absolute;
  left: 12px;
  top: 19px;
}

#what-it-does .feature {
  display: inline-block;
  width: 350px;
  padding: 15px 15px 15px 40px;
  margin: 0 15px;
  position: relative;
  text-align: left;
  vertical-align: top;
}

#what-it-does .feature:hover {
  background: #eee;
  cursor: default;
}

#license-section {
  margin: 50px auto;
  background: #fff;
  text-align: center;
  padding: 40px 30px 20px;
  font-size: 18px;
  max-width: 700px;
  border-radius: 4px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.15);
}

#license-section img:hover {
 box-shadow: 0 0 7px rgba(0,0,0,0.2);
}

#smiley {
  text-align: center;
  margin-top: 20px;
  font-size: 40px;
}

#tutorial-section {
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
  padding: 15px;
  background: #fff;
  margin-top: 65px;
  border-radius: 4px;
}

#tutorial-section  iframe {
  width: 640px;
  height: 360px;
}

#tutorial-title {
  font-size: 30px;
  font-weight: bold;
}
#tutorial-section .nav-pills {
  margin: 15px 0 20px;
  font-size: 18px;
}
#tutorial-section .nav-pills>li {
  float: none;
  display: inline-block;
}
#tutorial-section .nav-pills a {
  color: #17baef;
  padding: 4px 12px;
}
#tutorial-section .nav-pills>li.active>a {
  background: #074f66;
  color: white;
}

@media only screen and (max-width: 767px) {
  #page-header {
    padding-top: 80px;
  }
  #page-subtitle {
    font-size: 24px;
    margin-top: 20px;
  }
  #what-is-shinyjs {
    margin-top: 30px;
    font-size: 24px;
  }
  #shinyjs-desc {
    margin-top: 15px;
    font-size: 18px;
  }  
  #shinyjs-separator {
    margin: 35px auto 30px;
  }
  #what-it-does {
    margin: 25px auto;
    font-size: 18px;
  }
  #what-it-does-title {
    font-size: 24px;
    margin-bottom: 0px;
  }
  #what-it-does .feature {
    padding: 10px 10px 10px 40px;
    width: 400px;
  }
  #what-it-does .fa {
    top: 16px;
    left: 17px;
  }
  #license-section,
  #tutorial-section {
    margin: 30px 15px;
  }
  #tutorial-section iframe {
    width: 100%;
    height: 300px;
  }
  #license-section {
    padding: 25px 25px 10px;
    font-size: 18px;
    margin-bottom: 50px;
  }
  #tutorial-title {
    font-size: 24px;
  }
  #tutorial-section .nav-pills {
    font-size: 16px;
  }
  #smiley {
    margin-top: 5px;
    font-size: 32px;
  }
}

@media only screen and (max-width: 450px) {
  #page-header {
    padding: 70px 10px 35px;
    font-size: 60px;
  }
  #page-subtitle { 
    line-height: 30px;
  }
  #what-it-does .feature {
    width: 100%;
    margin: 0;
  }
}