#arlinablock {
  background: rgba(0,0,0,0.65);
  position: fixed;
  margin: auto;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  z-index: 999999;
}

#arlinablock .inner {
  background: var(--cyan); color: var(--text-inverse);
  box-shadow: var(--shadow-notice);
  text-align:center;
  width:600px;
  padding:40px;
  border-radius:5px;
  margin:7% auto 2% auto;
}

#arlinablock button {
  padding:10px 20px;
  border:0;
  background:rgba(0,0,0,0.15);
  color: var(--text-inverse);
  margin:20px 5px;
  cursor:pointer;
}

@media(max-width:768px){
  #arlinablock .inner {
    width:calc(100% - 20px);
    margin:10px auto;
    padding:15px;
  }
}