Fix scss merge problems

static/src/scss/app.scss

@@ -695,4 +695,34 @@ div.sponsor-logos {
         max-height: 100px;
         margin: 50px;
     }
-}
+}
+
+hr.green {
+    border-color: $primary;
+    background-color: $primary;
+    color: $primary;
+}
+
+div.talk-abstract {
+    @include media-breakpoint-up(lg) {
+        border-left: 1px solid #0F7C11 !important;
+    }
+}
+
+@include media-breakpoint-up(xl) {
+    .schedule-wrapper {
+        width: 80%;
+        min-width: 1140px;
+        max-width: 3000px;
+    }
+}
+
+@include media-breakpoint-up(sm) {
+    div.footer-center {
+        text-align: center;
+    }
+
+    div.footer-right {
+        text-align: right;
+    }
+}