nav ul li a{
        font-size: 13px;
       }

::-webkit-scrollbar{
  width: 3px;
}
         
::-webkit-scrollbar-thumb {
  background: #1ea3f7; 
  border-radius: 10px;
}       

p{
     margin-left: 30px;

   }
   
.topnav {
  height:50px;
}

.social-media{
  float: right;
  margin-right: 75px;
  padding: 10px;
  border-radius:6px;

}

.fa:hover {
    opacity: 0.7;
}

.social-media a{
  width: 25px;
  font-size: 20px;
  color: #fff;
  text-align: center;
  display: inline-block;
}

.navbar{
      height: 40px; 
      width: 100%; 
      background-color: #000000;
}

.navbar-nav .nav-item .nav-link:hover{
  color: #1ea3f7;
}

.navbar-nav .nav-item .nav-link{
  padding: 6px 15px;
  color: #fff;
}

.navbar-nav{
  margin-right: 70px;
}

.navbar-collapse{
  z-index: 1;
}

.dropbtn {
  color: #fff;
  padding: 6px;
  padding-left: 12px;
  padding-right: 12px;
  border: none;
}

.dropdown {
  font-size: 13px;
  position: relative;
  display: inline-block;
  cursor: pointer;

}

.dropdown-content {
  color: white;
  display: none;
  position: absolute;
  min-width: 130px;
  z-index: 1;

}


.dropdown-content a {
  color: #000;
  padding: 10px 10px;
  text-decoration: none;
  display: block;

}

.dropdown-content a:hover
 {
  color: #1ea3f7;
}

.dropdown:hover .dropdown-content 
{
  display: block;
}

.dropdown:hover .dropbtn {
  color: #1ea3f7;
}

button {
  background-color: #1ea3f7;
  color: white;
  padding: 4px 10px;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  width: 58px;
  font-size: 13px;
}

button:hover {
  opacity:0.7;
}              


.navbar-brand{
  left: 50px;
  position: absolute;
  bottom: 337px;

    }

.black{
  background-color: #000;
  height: 519px;
}


.white{
  background-color: #fff;
  height: 500px;
}

div.gallery {
  border: 1px solid #ccc;
}

div.gallery:hover {
  border: 1px solid #000;
}

div.gallery img {
  width: 100%;
  height: auto;
}

div.desc {
  padding: 15px;
  text-align: center;
}

* {
  box-sizing: border-box;
}

.responsive {
  margin-top: 50px;
  padding: 0 30px;
  float: left;
  width: 24.99999%;
}

div.ex1 {
  overflow-y: scroll;
}   

@media only screen and (max-width: 700px) {
  .responsive {
    width: 49.99999%;
    margin: 6px 0;
  }
}

@media only screen and (max-width: 500px) {
  .responsive {
    width: 100%;
  }
}

.clearfix:after {
  content: "";
  display: table;
  clear: both;
}

.contact{
  color: #fff;
  position: absolute;
  font-size: 15px;
  top: 435px;
  }

@media only screen and (max-device-width: 480px) {
      .navbar-nav{
  margin-right: 70px;
  background-color: #007BFF;
}
    }
    @media only screen and (max-width: 768px) {
       .navbar-nav{
  margin-right: 70px;
  background-color: #007BFF;
}
}