diff --git a/layouts/partials/bootstrap/alert-icon.html b/layouts/partials/bootstrap/alert-icon.html
index 27b0505..7d5667c 100644
--- a/layouts/partials/bootstrap/alert-icon.html
+++ b/layouts/partials/bootstrap/alert-icon.html
@@ -1,4 +1,4 @@
 {{- $icon := partial "bootstrap/functions/alert-icon" . }}
-<div class="flex-shrink-0">
+<div class="float-start">
   {{ partial "icons/icon" (dict "vendor" "bootstrap" "name" $icon "className" "alert-icon me-2") . }}
 </div>
diff --git a/layouts/partials/bootstrap/alert.html b/layouts/partials/bootstrap/alert.html
index cbf7c72..6d4ab18 100644
--- a/layouts/partials/bootstrap/alert.html
+++ b/layouts/partials/bootstrap/alert.html
@@ -4,7 +4,7 @@
 {{- else }}
   {{- with .Get 0 }}{{ $style = . }}{{ end }}
 {{- end }}
-<div class="alert alert-{{ $style }} d-flex" role="alert">
+<div class="alert alert-{{ $style }} clearfix" role="alert">
   {{/* Output the icon if heading doesn't present. */}}
   {{- if not (findRE `alert-heading` .Inner) }}
     {{ partial "bootstrap/alert-icon" $style }}