#wykres {
  left: 2px;
  right: 2px;
  width: 80%;
  min-width: 80%;
  max-width: 80%;
  display: block;
  position:relative;
  text-align:center;
  margin-bottom: 0.5rem;
}

@media only screen and (hover: none) and (pointer: coarse) {

  #wykres {
    left: 0px;
    right: 0px;
    width: 100%;
    min-width: 100%;
    max-width: 100%;
    display: block;
    text-align:center;
  }

}