.topnav {
  background-color: #888888;
  overflow: hidden;
  max-width:100%;
margin-top:4px;
}

/* Style the links inside the navigation bar */
.topnav a {
  float: left;
  display: block;
  color: #f2f2f2;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
  font-size: 13px;
}

/* Add an active class to highlight the current page 
.active {
  background-color: #4CAF50;
  color: white;
}
*/
/* Hide the link that should open and close the topnav on small screens */
.topnav .icon {
  display: none;
}

/* dropdownbb container - needed to position the dropdownbb content */
.dropdownbb {
  float: left;
  overflow: visible;
}

/* Style the dropdownbb button to fit inside the topnav */
.dropdownbb .dropbtn {
  font-size: 13px;
  border: none;
  outline: none;
  color: white;
  padding: 14px 16px;
  background-color: inherit;
  font-family: inherit;
  margin: 0;
}

/* Style the dropdownbb content (hidden by default) */
.dropdownbb-content {
  display: none;
  position: absolute;
  background-color: #f9f9f9;
  min-width: 160px;
  box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
  z-index: 1;
}

/* Style the links inside the dropdownbb */
.dropdownbb-content a {
  float: none;
  color: black;
  padding: 12px 16px;
  text-decoration: none;
  font-size: 11px;
  display: block;
  text-align: left;
}

/* Add a dark background on topnav links and the dropdownbb button on hover */
.topnav a:hover, .dropdownbb:hover .dropbtn {
  background-color: #555;
  color: white;

}

/* Add a grey background to dropdownbb links on hover */
.dropdownbb-content a:hover {
  background-color: #ddd;
  color: black;

}

/* Show the dropdownbb menu when the user moves the mouse over the dropdownbb button */
.dropdownbb:hover .dropdownbb-content {
  display: block;

}

 /* Add a black background color to the top navigation */
/* When the screen is less than 600 pixels wide, hide all links, except for the first one ("Home"). Show the link that contains should open and close the topnav (.icon) */
@media screen and (max-width: 600px) {
  .topnav a:not(:first-child), .dropdownbb .dropbtn {
    display: none;
  }
  .topnav a.icon {
    float: right;
    display: block;
  }
}

/* The "responsive" class is added to the topnav with JavaScript when the user clicks on the icon. This class makes the topnav look good on small screens (display the links vertically instead of horizontally) */
@media screen and (max-width: 1000px) {
  .topnav.responsive {position: relative;}
  .topnav.responsive a.icon {
    position: absolute;
    right: 0;
    top: 0;
  }
  .topnav.responsive a {
    float: none;
    display: block;
    text-align: left;
  }
  .topnav.responsive .dropdownbb {float: none;}
  .topnav.responsive .dropdownbb-content {position: relative;}
  .topnav.responsive .dropdownbb .dropbtn {
    display: block;
  /*  width: 100%;*/
    text-align: left;
	overflow:visible;
  }
}