bugfix: avoid component css issue

src/styles/layout/polls/polls.scss

@@ -70,7 +70,7 @@ solid-poll > div {
                 height: 100%;
                 max-width: 1100px;
                 margin: auto;
-                solid-display {
+                > solid-display {
                     width: 320px;
                     height: 550px;
                     margin: 0 0 20px 40px;