Button Styles

index.html

<!--<link rel="stylesheet" href="//code.cdn.mozilla.net/fonts/fira.css">-->

<button class="btn">Open My App</button>

style.less

.btn {
  border: medium none;
  outline: medium none;
  font-family: "Fira Sans", sans-serif;
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  box-sizing: border-box;
  padding: 15px 100px;
  max-width: 300px;
  display: inline-block;
  margin: 15px 30px;
  font-weight: 400;
  position: relative;
  color: white;
  background-color: #64A8EE;
  border-radius: 4px;
  box-shadow: 0px 3px #518AC2;
  
  &:active {
    background-color: #5C9CDB;
    box-shadow: inset 0px 2px 5px rgba(0,0,0,0.2);
    top: 3px;
  }
}