.leaderShipBg{
    height: 450px;
    width: 100%;
    
   
   
   background: black;
   
   background: #37c36d;  
   background: -webkit-linear-gradient(rgba(59, 124, 113, 0.8), rgba(55, 190, 116, 0.5)), url("https://img.freepik.com/premium-vector/illustration-connecting-people-communication-concept-social-network_302149-38.jpg?w=996");
   background: linear-gradient(rgba(59, 124, 113, 0.753), rgba(55, 190, 116, 0.5)), url("https://img.freepik.com/premium-vector/illustration-connecting-people-communication-concept-social-network_302149-38.jpg?w=996");  

  
   background-size: cover;
   position: relative;
   background-repeat: no-repeat;
  overflow: hidden;
  
  
  }


 



  
  @media only screen and (max-width: 769px) {
    .mainnave {
     height: 250px;  
     width: 100%;
     
   }

  }