Reviewed and improved export feature

frontend/delta/scss/core/layout.scss

@@ -209,9 +209,8 @@ html {
 	
 		& > div {
 			@include flex(auto);
-		
-			overflow: auto;
-		
+//			overflow: auto;
+			@include overflow-scroll();
 		}
 
 		footer {
@@ -226,6 +225,20 @@ html {
 		height: 100%;
 //		background-color: rgba( 0, 0, 0, 0.95);
 		background-color: black;
+
+		.extraFeature {
+//			@include flexbox();
+			height: 100%;
+		
+			h1 {
+//				@include flex(none);
+			}
+			.content {
+//				@include flex(auto);
+				height: 100%;
+				@include overflow-scroll();
+			}
+		}
 	}
 }
 

frontend/delta/scss/core/overlay.scss

@@ -126,6 +126,23 @@ div.overlay {
 		div.bar11 {@include transform(300deg, 0, -142%); @include animation-delay(-0.16670s);}
 		div.bar12 {@include transform(330deg, 0, -142%); @include animation-delay(-0.08330s);}
 	}
+
+	.progressBar {
+//		display: block;
+		width: 100%;
+		background-color: #222;
+		height: 4px;
+		margin-top: 86px;
+		@include border-radius(2px);
+	
+		.progress {
+			background-color: #999;
+//			width: 70%;
+			height: 4px;
+			display: block;
+			@include border-radius(2px);
+		}
+	}
 }
 
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