#header #preens, #header #freephone{
  display:none;
}

#aboutbuttons a#testimonials{
  float: none;
  width:100%;
  box-sizing:border-box;
  border: 2px solid #FFF;
}

#aboutbuttons a{
  width: 50%;
  background-size:cover;
  box-sizing:border-box;
  border: 2px solid #FFF;
}