#container.perc-region #header.perc-region {
   : ;
}
#perc-resp-container.perc-region #perc-body.perc-region {
   display: flex;
   flex-wrap: nowrap;
   align-items: flex-start;
}
#perc-resp-container.perc-region #perc-main.perc-region {
   display: flex;
   dlex-direction: 1 1 auto;
   min-width: 0;
   padding: 10px;
   box-sizing: border-box;
   float: none;
}
#perc-resp-container.perc-region #perc-sidebar.perc-region {
   flex: 0 0 300px;
   max-width: 300px;
   padding: 10px;
   box-sizing: border-box;
   float: none;
}