diff --git a/e107_themes/bootstrap3/css/modern-dark-2.css b/e107_themes/bootstrap3/css/modern-dark-2.css
index 9a3c5c2b6..5cf53aa61 100644
--- a/e107_themes/bootstrap3/css/modern-dark-2.css
+++ b/e107_themes/bootstrap3/css/modern-dark-2.css
@@ -1259,9 +1259,9 @@ button.close{padding:0;cursor:pointer;background:0 0;border:0;-webkit-appearance
 .modal-open .modal{overflow-x:hidden;overflow-y:auto}
 .modal-dialog{position:relative;width:auto;margin:10px}
 .modal-content{position:relative;background-color:#2f2f2f;border:1px solid #999;border:1px solid rgba(0,0,0,.2);border-radius:6px;-webkit-box-shadow:0 3px 9px rgba(0,0,0,.5);box-shadow:0 3px 9px rgba(0,0,0,.5);outline:0}
-.modal-backdrop{position:fixed;top:0;z-index:1040;background-color:#000}
+.modal-backdrop{position:fixed;top:0;z-index:1040;background-color: rgba(0,0,0,0.75);}
 .modal-backdrop.fade{opacity:0;filter:alpha(opacity=0)}
-.modal-backdrop.in{opacity:.5;filter:alpha(opacity=50)}
+.modal-backdrop.in{opacity:1; backdrop-filter: blur(2px) !important;}
 .modal-header{padding:15px;border-bottom:1px solid #0a0a0a}
 .modal-header .close{margin-top:-2px}
 .modal-title{margin:0;line-height:1.42857143}