diff --git a/tools/generate-doc-preview-index.sh b/tools/generate-doc-preview-index.sh
index ad5c043f1d4d9fcda8dd2149b076e2469d910788..5dd495f4c0eae48ec07de1b07ab87cc309ac1905 100755
--- a/tools/generate-doc-preview-index.sh
+++ b/tools/generate-doc-preview-index.sh
@@ -27,6 +27,38 @@ git diff --name-only $BASE_COMMIT_SHA -- $(git rev-parse --show-toplevel)/rust-r
echo '<html>'
echo '<head>'
echo ' <metadata charset="utf-8">'
+ echo " <style>"
+ echo " html {"
+ echo " font-size: 62.5%;"
+ echo " }"
+ echo " body {"
+ echo " max-width: 900px;"
+ echo " margin: 0 auto;"
+ echo " font-size: 1.6rem;"
+ echo " font-family: AmazonEmber, Helvetica Neue, Helvetica, Arial, sans-serif;"
+ echo " line-height: 1.6;"
+ echo " font-weight: 400;"
+ echo " color: #333;"
+ echo " }"
+ echo " h2 {"
+ echo " background-color: #232f3e;"
+ echo " color: white;"
+ echo " padding: 1rem;"
+ echo " }"
+ echo " a {"
+ echo " color: #007eb9;"
+ echo " outline: 0;"
+ echo " text-decoration: none;"
+ echo " }"
+ echo " a:visited {"
+ echo " color: #005b86;"
+ echo " }"
+ echo " a:active, a:hover {"
+ echo " outline: 0;"
+ echo " color: #e47911;"
+ echo " text-decoration: underline;"
+ echo " }"
+ echo " </style>"
echo " <title>Doc preview: ${DOC_TITLE_CONTEXT}</title>"
echo '</head>'
echo '<body>'