diff --git a/boards/static/css/md/base_page.css b/boards/static/css/md/base_page.css
--- a/boards/static/css/md/base_page.css
+++ b/boards/static/css/md/base_page.css
@@ -36,6 +36,7 @@ html {
     padding: 10px;
     border-radius: 5px;
     clear: left;
+    word-wrap: break-word;
 }
 
 .metadata {
diff --git a/boards/static/css/sw/base_page.css b/boards/static/css/sw/base_page.css
--- a/boards/static/css/sw/base_page.css
+++ b/boards/static/css/sw/base_page.css
@@ -134,6 +134,7 @@ li {
     clear: left;
     margin: 0 1ex 1em 1ex;
     overflow-x: auto;
+    word-wrap: break-word;
 }
 .last-replies > .post, #posts > .post {
     border-bottom: 1px solid #182F6F;