.add-a-button-container {
  display:flex;
  padding: 1rem;
}
.left-aligned {
  max-width:770px;
  display:block;
}
.center-text {
  display:block;
  margin:auto;
  max-width:770px;
}
.add-a-button-container > a {
  margin:auto;
  font-size:1.3rem;
  font-weight:700;
  text-decoration:none;
}
.add-a-button-container > a:hover {
  text-decoration:none;
  box-shadow: 5px 5px 9px -4px rgba(0, 0, 0, .25);
}  
@media (max-width:600px) {
.add-a-button-container > a {
  padding-left:2rem;
  padding-right:2rem;
}