@media (max-width: 768px) {
  .hidden-sm {   
      display:none;   
  }
}

@media (max-width: 540px) {
  header .container {
    flex-direction: column;
    align-items: center;
  }
  header .logo-container {
    margin-bottom: 10px;
  }
  header .subscribe-container {
    margin-top: 10px;
  }
}

header {
  padding: 0;
  margin: 0 auto;
  padding-top: 50px;
  background: none;
}

header a {
  font-size:1.2em;
}

header .container {
  width: 85%;
  display: flex;
  align-items: center;
}

header .logo-container {
  display: flex;
  flex: 1;
}

header .logo-container a {
  display: flex;
  align-items: center;
}

header .logo-container img {
  height: auto;
  width: auto;
  max-width: 480px;
}