body { 
    background-image: url(deux.jpg);
    background-size: contain;
    overflow: hidden;
    width: 99%;
    line-height: 1.5;
    font-family: 'Merriweather', Georgia, 'Times New Roman', Times, serif;

    }

  header.Panel {
    border: 1px solid blue;
    background-color: white;
    height: 7.3%;
    margin-left: -1%;
    margin-right: -1%;
    margin-top: -1%;
    opacity: 0.9;
    }

  h1.titre { 
    font-size: 100%;
    padding-top: 0.5%;
    padding-left: 4%;
    }
p {
  width: 50%;
  overflow: hidden;
}

  article.coeur { border-style: solid;
    border-width: 1px;
    margin: 7%;
    margin-top: 3%;
    background-color: whitesmoke;
    width: auto;
    opacity: 0.98;
    height: 830px;
    bottom:6px;
       
}

  ul { 
    padding: 0%;
    list-style-type: none;
    margin-top:3.5%;
    width: 21.7%;
    background-color: rgb(217, 227, 230);
    background-blend-mode: color; 
    object-position: center;
    }

  li a { 
    padding: 3% 9%;
    display: block;
    color: black;
    text-decoration: none;
    }

  li a:hover { 
    background-color: rgb(85, 85, 85);
    color: white;
    box-shadow: 4px -3px 5px  grey;
    }

  li a:active { 
      background-color: mediumvioletred;
    }

  div.contenu { 
    border-left: thin solid black;
    height: 100%;
    width: 74.4%;
    overflow-y: scroll; 
    margin-left: 21.6%;
    margin-top: -18.30%;
    display: block;
    padding-left: 4%;
    }

  img { 
    height: 100%;
    width: 100%;
    }