Added VT100 scan line effect

dist/css/terminal.css

@@ -86,6 +86,20 @@ a:focus, a:hover {
     border-top: 1px solid #33ff00;
 }
 
+.panel-primary>.panel-heading::before, .navbar-default::before {
+    content: " ";
+    display: block;
+    position: absolute;
+    top: 0;
+    left: 0;
+    bottom: 0;
+    right: 0;
+    background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.25) 50%), linear-gradient(90deg, rgba(255, 0, 0, 0.06), rgba(0, 255, 0, 0.02), rgba(0, 0, 255, 0.06));
+    z-index: 2;
+    background-size: 100% 2px, 3px 100%;
+    pointer-events: none;
+}
+
 .sidebar ul li a.active,.sidebar ul li a.hover {
     background-color: #000;
 }