h1 {
  font-family: "Roboto"
}

h2 {
  font-family: "Roboto"
}
h3 {
  font-family: "Roboto"
}

.rbt {
  font-family: "Roboto"
}

button {
  background-color: #4CAF50; /* Green */
  border: none;
  color: white;
  padding: 16px 32px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 16px;
  margin: 4px 2px;
  -webkit-transition-duration: 0.4s; /* Safari */
  transition-duration: 0.4s;
  cursor: pointer;
}

body {
  background-color: lightblue;
}

.mentions {
  background-color: orange;
}