diff --git a/.editorconfig b/.editorconfig
index 6757d2b..93c5188 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -1,24 +1,25 @@
-# http://editorconfig.org
+# https://editorconfig.org
 
 root = true
 
-# Follow Django conventions for most files
 [*]
 charset = utf-8
 end_of_line = lf
-indent_size = 4
+indent_size = 2
 indent_style = space
 insert_final_newline = true
 trim_trailing_whitespace = true
 
-# Use 2 spaces for js and text(-like) files
-[*.{html,js,json,md,rst,txt,yml}]
-indent_size = 2
+[*.py]
+indent_size = 4
+max_line_length = 120
 
-# Makefiles always use tabs for indentation
-[Makefile]
+[*.{ini,lock}]
+indent_size = 4
+
+[{Makefile,*.bat}]
 indent_style = tab
+indent_size = 4
 
-# Batch files use tabs for indentation
 [*.bat]
-indent_style = tab
+end_of_line = crlf
diff --git a/docs/_static/anymail-theme.css b/docs/_static/anymail-theme.css
index 3c4b035..40c27d6 100644
--- a/docs/_static/anymail-theme.css
+++ b/docs/_static/anymail-theme.css
@@ -4,41 +4,41 @@
 /*        Regression: https://github.com/rtfd/sphinx_rtd_theme/issues/705 */
 .rst-content .section ol li p:last-child,
 .rst-content .section ul li p:last-child {
-    margin-bottom: 24px;
+  margin-bottom: 24px;
 }
 
 
 /* Pygments shell/console prompt: */
 .highlight .gp {
-    /* The RTD theme shows prompts the same color as other code.
-       We want to distinguish them (like most Pygments themes do). */
-    color: #d14;
+  /* The RTD theme shows prompts the same color as other code.
+     We want to distinguish them (like most Pygments themes do). */
+  color: #d14;
 
-    /* Exclude prompt characters when copying from highlighted code. */
-    user-select: none;
-    -moz-user-select: none;
-    -webkit-user-select: none;
-    -ms-user-select: none;
+  /* Exclude prompt characters when copying from highlighted code. */
+  user-select: none;
+  -moz-user-select: none;
+  -webkit-user-select: none;
+  -ms-user-select: none;
 }
 
 
 /* Sticky table first column (used for ESP feature matrix) */
 table.sticky-left td:first-of-type,
 table.sticky-left th:first-of-type {
-    position: -webkit-sticky; /* Safari */
-    position: sticky;
-    left: 0;
-    background-color: #fcfcfc; /* override transparent from .wy-table td */
+  position: -webkit-sticky; /* Safari */
+  position: sticky;
+  left: 0;
+  background-color: #fcfcfc; /* override transparent from .wy-table td */
 }
 table.sticky-left td:first-of-type[colspan] > p,
 table.sticky-left th:first-of-type[colspan] > p {
-    /* Hack: the full-width <td colspan=N> section headers can't stick left;
-       since those always wrap a rubric <p> (in the specific table that uses this),
-       just make the <p> sticky within the <td>. */
-    display: inline-block;
-    position: -webkit-sticky; /* Safari */
-    position: sticky;
-    left: 17px; /* (.wy-table $table-padding-size) + (docutils border="1" in html) */
+  /* Hack: the full-width <td colspan=N> section headers can't stick left;
+     since those always wrap a rubric <p> (in the specific table that uses this),
+     just make the <p> sticky within the <td>. */
+  display: inline-block;
+  position: -webkit-sticky; /* Safari */
+  position: sticky;
+  left: 17px; /* (.wy-table $table-padding-size) + (docutils border="1" in html) */
 }
 
 
@@ -57,12 +57,12 @@ table.sticky-left th:first-of-type[colspan] > p {
             https://github.com/rtfd/sphinx_rtd_theme/issues/92
 */
 .rst-content a code.xref {
-    color: #2980B9;
-    font-weight: inherit;
+  color: #2980B9;
+  font-weight: inherit;
 }
 .rst-content a:hover code.xref {
-    color: #3091d1;
+  color: #3091d1;
 }
 .rst-content a:visited code.xref {
-    color: #9B59B6;
+  color: #9B59B6;
 }