body {
  padding-top: 20px;
  padding-bottom: 20px;
}

.jumbotron {  
  font-family: Arial, sans-serif;
  
}

.navbar {
  margin-bottom: 20px;
}

.header {
  font-family: Arial, sans-serif;
  font-size: large;
}

.list-group-item {
  font-size: large;
  background-color: inherit;
}

hr { 
  display: block;
  margin-bottom: 5px;
  border-width: 2px;
}