body, html{
    width:100%;
    max-width:100%;
}

body{
    width:100%;
    max-width:100%;
    margin:0;
}

.container{
    margin:5px;
}
.tab-container {
    display: flex;
    width:100%;
    max-width:100%;
  }

  .tab-col {
    flex: 50%;
    text-align:center;
    max-width:100%;
  }

  img{
      width:auto;
      max-width: 100%;
      height:auto;
      max-height:100%;
      margin:0;
  }

.gap{
    height:100vh;
    background-image:url("http://mattchalmers.com.au/cust_dev/od_demo/wp-content/uploads/2020/05/97911463_705943949948294_5141028947974160384_o.jpg");
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

  @media screen and (max-width: 800px) {

    .tab-container{
        width:100% !important;
        flex-direction:column;
    }
  }