.navbar {
  background-color: #552531;
  overflow: hidden;
  box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
  position: sticky;
  top: 0;
  z-index: 999;
}

.leftColumn {
  width:75%;
  float: left;
  text-align: left;
}
.leftColumn img {
  width: 100%;
  max-width: 600px;
}
.rightColumn {
  width:25%;
  float: right;
  text-align: right;
}
.rightColumn img {
  width: 100%;
  max-width: 200px;
}

.tendina {
  display: none;
  font-size: 21px;
  position: fixed;
  padding-bottom: 15px;
  border-radius: 0px 0px 15px 15px;
  right: 0px;
  background-color: #835353;
  box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
  z-index: 999;
}

.tendina a {
  float: none;
  color: #C79986;
  padding: 10px 20px;
  text-decoration: none;
  display: block;
  text-align: center;
}

.tendina a:hover {
  background-color: #552531;
}

.show {
  display: block;
}