body {
  background-image: url(https://www.incimages.com/uploaded_files/image/1920x1080/getty_660582997_412145.jpg);
  color: rgb(216, 227, 236);
  width: 100%;
  background-repeat: no-repeat;
  background-size: cover;
}

.jumbotron {
  background-color: rgba(0, 0, 0, 0.75);
  text-align: center;
  padding: 10px;
  margin-bottom: 20px;
  text-shadow:2px 2px 4px darkgoldenrod;
}

.jumbotron .language {
  color: chartreuse;
  text-shadow: 5px 5px 5px rgb(11, 129, 184);
}

.form-group {
  margin-left: 150px;
  margin-right: 150px;
  text-align: center;
  
}

li {
  background-color: rgba(0, 0, 0, 0.5);
  padding-left: 20px;
  padding-bottom: 10px;
  margin-bottom: 10px;
}

button {
  margin: auto;
  text-align: center;
  border-style: solid;
  border: 5px crimson;
}

.result {
  display: none;
  background-color: rgba(0, 0, 0, 0.75);
  padding: 20px;
  text-align: center;
}

.result a {
  background-color: rgb(247, 117, 117);
  padding: 5px;
  color: blue;
  border-radius: 20%;
  
}

#javascript {
  display: none;
}

#csharp {
  display: none;
}

#python {
  display: none;
}

#ruby {
  display: none;
}

#swift {
  display: none;
}