diff --git a/src/components/styled/views/Board.styled.jsx b/src/components/styled/views/Board.styled.jsx
index c2cb1312..0d2457de 100644
--- a/src/components/styled/views/Board.styled.jsx
+++ b/src/components/styled/views/Board.styled.jsx
@@ -1905,6 +1905,7 @@ export const BoardForm = styled.div`
     .file-thumb {
       float: left;
       margin: 3px 20px 5px 20px;
+      background-color: rgba(0, 0, 0, 0.1);
     }
 
     .reply-file-text {