article {
  max-width: 90%;
  margin: 0 auto;
}

.sf-dotnav {
  margin-top: 30px;
  padding-bottom: 30px;
}

.sf-dotnav li {
  flex: 1 1 0;
  height: 100%;
}

.sf-dotnav li a{
  height: 100%;
}

.sf-dotnav img{
  width: 100%;
  height: 100%;
  object-fit: cover;
}