* {
    margin: 0;
    padding: 0;
    border: 0px;
    border-spacing: 0;
}
  
    .listprogramme, .programme {
        padding: 0;
        margin: 0;
        border: 0;
        top: 0;
    }
   th, td{
        border-bottom: 1px solid #757575;
        border-right: 1px solid #757575;
    }
    
    html, body, table, tbody, table {
        padding: 0%;
        margin: 0%;
        border: 0px;
        width: 100%;
    }
    html, body {
      height:100%;
    }
    img {
      height: 0.9em;
      margin-right: 5px;
    }
    .img-big {
      height: 30px;
      margin-right: 8px;
    }
    button {
      display: inline-flex;
      align-items: center;
      border: 0px;
      padding: 5px;
      background-color: #f0f0f0;
    }
    button:hover {
      background-color: #dddddd;
    }
    button:active {
      background-color: #bbbbbb;
    }
    
    thead {
      background-color: #f0f0f0;
      text-align: left;
    }
  
    .but {
      box-shadow: 0px 10px 14px -7px #276873;
      background:linear-gradient(to bottom, #599bb3 5%, #408c99 100%);
      background-color:#599bb3;
      border-radius:8px;
      display:inline-block;
      cursor:pointer;
      color:#ffffff;
      font-family:Arial;
      font-size:20px;
      font-weight:bold;
      padding:10px 32px;
      text-decoration:none;
      text-shadow:0px 1px 0px #3d768a;
      margin: 7px;
      margin-right: 10px;
      margin-top: 3px;
    }
    .but:hover {
      background:linear-gradient(to bottom, #408c99 5%, #599bb3 100%);
      background-color:#408c99;
    }
    .but:active {
      position:relative;
      top:1px;
    }
    .but-big {
      font-size: large;

    }

    /* Style général du bouton */
    .back-button {
        position: fixed;
        bottom: 5px;
        right: 5px;
        display: inline-flex;
        align-items: center;
        padding: 10px 20px;
        font-size: 1.2em;
        background-color: #cde7f3;
        color: black;
        border: none;
        border-radius: 5px;
        cursor: pointer;
        visibility: hidden;
        transition: background-color 0.3s;
        z-index: 1;
        /*background-color: transparent; /* Fond transparent */
        border: 1px solid #8cbfc9;
    }

    /* Style de la flèche */
    /*.back-button::before {
        content: '\2190'; /* Unicode pour la flèche de retour *//*
        font-size: 18px;
        margin-right: 10px; /* Espacement entre la flèche et le texte *//*
    }*/

    /* Effet au survol */
    .back-button:hover {
        background-color: #408c99;
    }

    /* Effet lors du clic */
    .back-button:active {
        background-color: #408c99;
    }

    #block_liste {
        -webkit-transition: width .5s;
        -moz-transition: width .5s;
        -ms-transition: width .5s;
        -o-transition: width .5s;
        transition: width .5s;
    }
    .btn {
      font-size: 1em;
    }