fix go-top-link footer offset, fix footer margin, fix image description position

src/files/css/main.css

@@ -9661,6 +9661,14 @@ img {
   .full-news__gallery-img {
     overflow: hidden;
     border-radius: 10px 0 0 0; }
+    .full-news__gallery-img .fotorama__html {
+      position: relative; }
+    .full-news__gallery-img-descr {
+      position: absolute;
+      bottom: 0;
+      color: #fff;
+      background: rgba(0, 0, 0, 0.4);
+      width: 100%; }
   .full-news__gallery-preview {
     width: 140px; }
   .full-news__gallery-prevs-left, .full-news__gallery-prevs-right {

src/files/scss/_full-news.scss

@@ -208,6 +208,18 @@
         &-img {
             overflow: hidden;
             border-radius: 10px 0 0 0;
+
+            .fotorama__html {
+                position: relative;
+            }
+
+            &-descr {
+                position: absolute;
+                bottom: 0;
+                color: #fff;
+                background: rgba(0,0,0,0.4);
+                width: 100%;
+            }
         }
 
         &-preview {