#first-media .pl-bg--gray-lightest {
  background-color: #ffffff !important;
}

#second-media .pl-bg--gray-lightest {
  background-color: #ffffff !important;
}

#third-media .pl-bg--gray-lightest {
  background-color: #ffffff !important;
}

#forth-media .pl-bg--gray-lightest {
  background-color: #ffffff !important;
}