.is-style-separator4 {
  margin-top: 200px;
  height: 25px;
  width: 368px !important;
  max-width: 80%;
  border: 0 !important;
  margin: 30px 0;
  position: relative;
}
.is-style-separator4:after {
  content: "";
  background-image: url(img/fond-sous-titre.svg);
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
  height: 25px;
  width: 100% !important;
  display: inline-block;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}