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        <div id="presentServeur">
          <p>Nemo quaeso miretur, si post exsudatos labores itinerum longos congestosque adfatim commeatus fiducia vestri ductante barbaricos pagos adventans velut mutato repente consilio ad placidiora deverti.</p>
        <div id="presentCarte">
          <p>Post quorum necem nihilo lenius ferociens Gallus ut leo cadaveribus pastus multa huius modi scrutabatur. quae singula narrare non refert, me professione modum, quod evitandum est, excedamus.</p>
          <p>Et est admodum mirum videre plebem innumeram mentibus ardore quodam infuso cum dimicationum curulium eventu pendentem. haec similiaque memorabile nihil vel serium agi Romae permittunt. ergo redeundum ad textum.</p>
        <div id="map"></div>


                main {
  display: flex;
  flex-flow: row nowrap;

main aside {
  flex: 1 1 30%;

main section {
  flex: 1 1 70%;
	display: flex;
	flex-flow: row nowrap;

#map {
  flex: 1;
  max-height: 400px; /* proposé par _laurent pour limiter le défaut */

/* Responsive */

@media all and (max-width: 640px) {
  main { flex-flow: column nowrap; }
  main section { min-height: 400px; }


                var map = new ol.Map({
  layers: [
    new ol.layer.Tile({
      source: new ol.source.OSM()
  target: 'map',
  view: new ol.View({
    center: [0, 0],
    zoom: 2
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