h1.titre{
  display: block;
  border: red 1px solid;
}

div.rond{
  /* display: inline-block; */
  width: 20px;
  height: 20px;
  border-radius: 10px;
  background-color: rgb(250, 0, 250);
  /* top:50px;
  left:78px; */
  position: absolute;
}