.homepage-banner {
  margin: 0 !important;
  padding: 0 !important;
  max-width: 100% !important;
}

.homepage-banner img {
  width: 100%;
}

@media(orientation: landscape) {
  #landscape { display: block; }
  #portrait { display: none; }
}

@media(orientation: portrait) {
  #landscape { display: none; }
  #portrait { display: portrait; }
}

#invitation {
  display: inline-flex;
  align-items: center;
}

#invitation img {
  width: 1.44em;
  margin-right: 1em;
}

.sponsors-list {
  margin: 0;
  padding: 0;
  list-style-type: none;
  display: flex;
  justify-content: space-around;
  align-items: center;
  flex-wrap: wrap;
}

.sponsors-list img {
  width: 100px;
}

#dost {
  grid-area: dost;
  display: flex;
  flex-direction: columm;
  justify-content: center;
}
#acer {
  grid-area: acer;
  display: flex;
  justify-content: center;
}
#smart {
  grid-area: smart;
}
#google { grid-area: google; }

#acer img { height: 50px; width: auto; }
#smart img { height: 60px; width: auto; }
#google img { height: 60px; width: auto; }