<div>
  <button class="btn-primary">Button 1</button>
  <br>
  <button class="btn-secondary">Button 2</button>
</div>  

body{
  background: #1f1f1f;
}

div{
  width: 80%;
  margin: auto;
  line-spacing: 4px;
  border: 1px dashed #FFFFFF;
}  

button {
  margin: 30px auto;
  display: block;
  font-size: 1.25rem;
  border: 0px;
  padding: 15px 30px;
}

/* Or Selector */
.btn-primary, .btn-secondary {
  border-radius: 20px;
}