<div class="alert">Success alert</div>

.alert {
  border-color:     hsl(120, 50%, 40%);
  color:            hsl(120, 50%, 20%);
  background-color: hsl(120, 50%, 90%);
}





















.alert {
  display: inline-block;
  padding: 10px 15px;
  border-radius: 5px;
  margin: 10px;
  font-size: 16px;
  border-width: 2px;
  border-style: solid;
}