body
{
    height: 2000PX;
    background-color: #000;
    text-decoration: none;
}

.header
{
    background: no-repeat left/cover url(https://cdn1.epicgames.com/salesEvent/salesEvent/EGS_KenFollettsThePillarsoftheEarth_DaedalicEntertainment_S1_2560x1440-d6e940a0b8e56e26ed4e8f11e936b887);
    height: 50%;
    width: 100%;
    opacity: .3;
    text-decoration: none;
}

  .sticky
  {
    background-color: rgba(0,0,0,.8);
    height: 50px;
    position: sticky;
    float:center;
    top: 0;
    border-radius: 2px;
    font-size: 20px;
    color: white;
    font-family: Algerian;
    text-align: center;
    text-decoration: none;
  }

.background
{
    background: no-repeat left/cover url(bg.jpg);
    height: 60%;
    width: 100%;
    opacity: .3;
    text-decoration: none;
}

.footer
{
    background: rgba(0,0,0,.8); 
    height: 30px;
    width: 100%;
    font-family: Algerian;
    text-align: center;
    color: white;
    text-decoration: none;
}

.book
{
    margin-top: 10%;
    margin-left: 3%;
    width: 30%;
    text-decoration: none;
}

.popup
{
    position: fixed;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,.8);
    top: 0;
    left: 0;
    opacity: 0;
    visibility: hidden;
    overflow-y: auto;
    overflow-x: hidden;
    transition: all 0.8s ease 0s;
    text-decoration: none;
}

.popup.open
{
    opacity: 1;
    visibility: visible;
    text-decoration: none;
}

.popup.close
{
    opacity: 0;
    visibility: hidden;
    text-decoration: none;
}

.popup_body
{
    height: 100%;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
}

.popup_content
{
    background-color:rgba(0,0,0,.8);
    color:#fff;
    max-width:100%;
    text-decoration: none;
}

.popup_close
{
    position: absolute;
    left: 10px;
    top: 30px;
    text-decoration:  none;
}
.popup_title
{
    font-size: 20px;
    text-align: center;
    font-family: Gabriola;
}

.popup_text
{
    font-size: 13px;
    margin-top:20px;  
    text-decoration: none;
    font-family: Gabriola;
    color: #fff;
}

.author
{
    text-decoration: none;
    color: #fff;
    opacity: .3;
}