body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
}

.topnav {
  overflow: hidden;
  background-color: #00b8e6;
        width: 1135px;
        height: 37px;
        margin-left :0px;

    }

.topnav a {
  float: left;
  display: block;
  /*color: #f2f2f2;*/
  text-align: center;
  padding: 12px 14px;
  text-decoration: none;
  font-size: 14px;
    color: #fff;
   
}

.topnav a:hover {
  background-color: #ddd;
  color: black;
}

.topnav a.active {
  background-color: #4CAF50;
  color: white;
}

.topnav .icon {
  display: none;
}

@media screen and (max-width: 600px) {
  .topnav a:not(:first-child) {display: none;}
  .topnav a.icon {
    float: right;
    display: block;
  }
}

@media screen and (max-width: 600px) {
  .topnav.responsive {position: relative;}
  .topnav.responsive .icon {
    position: absolute;
    right: 0;
    top: 0;
  }
  .topnav.responsive a {
    float: none;
    display: block;
    text-align: left;
  }
    
  span {

            margin-right :15px;
            color :black  

        }
  .hidden
{
    display:none;
}
}