* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  /*
   * Base structure
   */
  
  /*
   * Header
   */
  
  .banner-wrap {
    /* feel free to use your own img  */
    background-image: url(https://scontent-jnb1-1.xx.fbcdn.net/v/t31.18172-8/24068847_1609655742446695_8541137933928533151_o.jpg?stp=cp0_dst-jpg_e15_q65_s403x403&_nc_cat=110&ccb=1-7&_nc_sid=7aed08&efg=eyJpIjoidCJ9&_nc_ohc=ZujEuZLYWpEAX9thhoe&_nc_ht=scontent-jnb1-1.xx&oh=00_AfCIgZaN9NBb0ufev7_XblZGpSSE4OME0d5Lz3fzlcfdZw&oe=65355306);
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
    position: relative;
    z-index: 1;
  }
  .overlay {
    z-index: -1;
    height: 100%;
    width: 100%;
    background: black;
    opacity: 50%;
    position: absolute;
    top: 0;
  }
  
  .nav-masthead .nav-link {
    padding: 0.25rem 0;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.5);
    background-color: transparent;
    border-bottom: 0.25rem solid transparent;
  }
  
  .nav-masthead .nav-link:hover,
  .nav-masthead .nav-link:focus {
    border-bottom-color: rgba(255, 255, 255, 0.25);
  }
  
  .nav-masthead .nav-link + .nav-link {
    margin-left: 1rem;
  }
  
  .nav-masthead .active {
    color: #fff;
    border-bottom-color: #fff;
  }
  
  .scrolling {
    background: black;
    opacity: 80%;
    transition: all 0.5s;
  }