diff --git a/doc/lib.m4 b/doc/lib.m4
index 2409311b5..2c20e86b4 100644
--- a/doc/lib.m4
+++ b/doc/lib.m4
@@ -2,3 +2,21 @@ m4_changequote({{,}})m4_dnl
 m4_define({{_man_}}, m4_ifdef({{MAN}},{{$1}}))m4_dnl
 m4_define({{_web_}}, m4_ifdef({{WEB}},{{$1}}))m4_dnl
 m4_define({{_include_}}, m4_defn({{m4_include}}))m4_dnl
+m4_define({{_col2_}},
+{{<div class="container-fluid">
+<div class="row">
+<div class="col-sm-6">$1</div>
+<div class="col-sm-6">$2</div>
+</div>
+</div>}})m4_dnl
+m4_define({{_col3_}},
+{{<div class="container-fluid">
+<div class="row">
+<div class="col-sm-4">$1</div>
+<div class="col-sm-4">$2</div>
+<div class="col-sm-4">$3</div>
+</div>
+</div>}})m4_dnl
+m4_define({{_shell_}}, {{```{.shell .clear}$1```}})m4_dnl
+m4_define({{_shellbold_}}, {{```{.shell .bold .clear}$1```}})m4_dnl
+m4_define({{_journal_}}, {{```{.journal .clear}$1```}})m4_dnl