html, body
{
   height: 100%;
}
div#space
{
   width: 1px;
   height: 50%;
   margin-bottom: -500px;
   float:left
}
div#container
{
   width: 970px;
   height: 1000px;
   margin: 0 auto;
   position: relative;
   clear: left;
}
body
{
   background-color: #FFFFFF;
   color: #000000;
   font-family: Arial;
   font-weight: normal;
   font-size: 13px;
   line-height: 1.1875;
   margin: 0;
   padding: 0;
}
/* ajout simple pour le bouton + fixe */
body{
  padding-bottom:120px;
}

.load-more-wrap{
  position:fixed;
  left:50%;
  bottom:22px;
  transform:translateX(-50%);
  z-index:1000;
  display:flex;
  justify-content:center;
  align-items:center;
  pointer-events:none;
}

.load-more-btn{
  width:74px;
  height:74px;
  border:none;
  border-radius:50%;
  cursor:pointer;
  font-size:36px;
  font-weight:900;
  color:#102216;
  background:linear-gradient(135deg, #d4b15d, #f5de97);
  border:1px solid rgba(245,222,151,.65);
  box-shadow:
    0 16px 30px rgba(0,0,0,.28),
    0 0 0 8px rgba(255,255,255,.05);
  transition:transform .25s ease, box-shadow .25s ease, opacity .25s ease, filter .25s ease;
  pointer-events:auto;
}

.load-more-btn:hover{
  transform:translateY(-4px) scale(1.05);
  box-shadow:
    0 24px 40px rgba(0,0,0,.34),
    0 0 0 10px rgba(255,255,255,.06);
  filter:brightness(1.04);
}

.load-more-btn:disabled{
  opacity:.5;
  cursor:not-allowed;
  transform:none;
  filter:none;
}

.load-more-btn span{
  display:inline-block;
  line-height:1;
  transform:translateY(-1px);
}

@media (max-width:680px){
  body{
    padding-bottom:110px;
  }

  .load-more-wrap{
    bottom:16px;
  }

  .load-more-btn{
    width:66px;
    height:66px;
    font-size:32px;
  }
}