diff --git a/doc/src/Commands_parse.rst b/doc/src/Commands_parse.rst
index 64d5100715..563b18a4c2 100644
--- a/doc/src/Commands_parse.rst
+++ b/doc/src/Commands_parse.rst
@@ -164,7 +164,7 @@ LAMMPS:
    allowed, but that should be sufficient for most use cases.
 
 .. admonition:: ASCII versus UTF-8
-        :class: note
+   :class: note
 
    LAMMPS expects and processes 7-bit ASCII format text internally.
    Many modern environments use UTF-8 encoding, which is a superset
diff --git a/doc/src/Manual.rst b/doc/src/Manual.rst
index 61b5af0eff..2bbf2d95be 100644
--- a/doc/src/Manual.rst
+++ b/doc/src/Manual.rst
@@ -124,6 +124,7 @@ Indices and tables
 
 .. _webbrowser:
 .. admonition:: Web Browser Compatibility
+   :class: note
 
    The HTML version of the manual makes use of advanced features present
    in "modern" web browsers.  This can lead to incompatibilities with older
diff --git a/doc/src/Speed_kokkos.rst b/doc/src/Speed_kokkos.rst
index 5548307de5..c3f8945c62 100644
--- a/doc/src/Speed_kokkos.rst
+++ b/doc/src/Speed_kokkos.rst
@@ -27,7 +27,7 @@ GPUs) and HIP (for AMD GPUs). You choose the mode at build time to
 produce an executable compatible with a specific hardware.
 
 .. admonition:: C++14 support
-      :class: note
+   :class: note
 
    Kokkos requires using a compiler that supports the c++14 standard. For
    some compilers, it may be necessary to add a flag to enable c++14 support.