.app-submit-button{
    background-color: #6bd300;
  
    width: 75%; /* Default for desktop */
    display: block;

    border: 1px solid transparent;
    border-radius: .25rem;
    padding: calc(.875rem - 1px) calc(1.5rem - 1px);
    color:#fafafa;
    
    box-shadow: rgba(0, 0, 0, 0.02) 0 1px 3px 0;
    box-sizing: border-box;
    
    font-size: 20px;
    font-weight: bold;

    padding: 15px 20px;
    position: relative;
}

.app-submit-button:after{
  background: none repeat scroll 0 0 transparent;
  bottom: 0;
  content: "";
  display: block;
  height: 4px;
  left: 50%;
  position: absolute;
  background: #65b32e;
  transition: width 0.3s ease 0s, left 0.3s ease 0s;
  width: 0;   
}

.app-submit-button:hover:after{
  width: 100%; 
  left: 0%; 
}



.app-submit-button:hover,
.app-submit-button:focus {
  background-color: #7cdc38;
  box-shadow: rgba(0, 0, 0, 0.1) 0 4px 12px;
}

.app-submit-button:active {
  background-color: #7cdc38;
  box-shadow: rgba(0, 0, 0, .06) 0 2px 4px;
 
}

/* Small */
@media(min-width:0px) and (max-width:991px){
 
  .app-submit-button{
    width: 100%; 
    display: block;
  }  

}