.clear {
    clear: both;
    float: none;
    width: 100%;
  }

/* taille images dans galleries (lightbox) */
.gallery img{
  width: 200px;
  height: 200px;
}

/*taille thumb des ronds */
.gallery img#D40{
  width: 150px;
  height: 150px;
}

.gallery img#D30{
  width: 100px;
  height: 100px;
}

.gallery img#D15{
  width: 60px;
  height: 60px;
}

/* container qui contient nos images */
  .container {
    display: block;
    max-width: 1400px;
    margin-top: 90px;
    margin-left: 300px;
  }

  /*lien pour formats ronds */
  .space {
    padding-top: 50px;
  }
  
  .formatrond {
    display: flex;
    font-weight: 700;
    position: absolute;
    margin-left: 1100px;
  }

  .formatrond img{
    margin-left: 20px;
    margin-top: -40px;
    height: 100px;
    width: 100px;
    transition: all .2s ease-in-out;
  }

  .formatrond img:hover{
    transform: scale(1.1);

  }

  /* animation + modif image quand souris dessus */
  .container .gallery a img {
    transition: .5s;
  }
  .container .gallery a:hover img {
    opacity: 70%;
  }

  .container .gallery a.big img {
    width: 40%;
  }