*{
    font-family:sans-serif;
  }
  
  html{
     background:url(https://bbl.solutions/wp-content/uploads/2014/11/Blog-background-white-HNM-blue-gradient-blue-gear-2.png);
     background-size: cover;
  }
  
  #heading{
      background-color: lightblue;
      color:white;
      text-align: center;
      border-style: solid;
    padding-top:10px;
    padding-bottom:10px;
   }
  
  
  .btn {
      border: none;
      padding: 14px 28px;
      font-size: 16px;
      cursor: pointer;
      background-color:lightblue;
      text-align: center;
      background-origin: padding-box;
       border-radius:10px;
    }
  .btn:hover{
    background:orange;
  }
  
    #centre_button{
        text-align: center;
    }
  
  #flex-container{
    display:flex;
    flex-direction:row-reverse;
    justify-content:space-around;
    align-content:center;
  }