static/tgal.css: Centre the thumbstrip horizontally if it's short.

Using `justify-content' clips thumbnails on the left, if there are too
many to fit.  Instead, (a) set `max-width' rather than `width', and use
`align-self' to centre in the outer flex box.

diff --git a/static/tgal.css b/static/tgal.css
index 3d7fb19..c084d5f 100644 (file)
--- a/static/tgal.css
+++ b/static/tgal.css
@@ -144,10 +144,10 @@ a.view img {
 }
 
 div.thumbstrip {
-       width: 100%;
+       max-width: 100%;
        overflow-x: auto;
        text-align: center;
-       display: flex; flex-direction: row;
+       display: flex; flex-direction: row; align-self: center;
 }
 
 /*----- That's all, folks -------------------------------------------------*/