diff --git a/doc/source/themes/nature_with_gtoc/static/nature.css_t b/doc/source/themes/nature_with_gtoc/static/nature.css_t
index 2e0bed922c1e6..61b0e2cce5e5a 100644
--- a/doc/source/themes/nature_with_gtoc/static/nature.css_t
+++ b/doc/source/themes/nature_with_gtoc/static/nature.css_t
@@ -178,6 +178,10 @@ div.body h4 { font-size: 110%; background-color: #D8DEE3; }
 div.body h5 { font-size: 100%; background-color: #D8DEE3; }
 div.body h6 { font-size: 100%; background-color: #D8DEE3; }
 
+p.rubric {
+    border-bottom: 1px solid rgb(201, 201, 201);
+}
+
 a.headerlink {
     color: #c60f0f;
     font-size: 0.8em;
@@ -231,10 +235,10 @@ p.admonition-title:after {
 
 pre {
     padding: 10px;
-    background-color: White;
+    background-color: rgb(250,250,250);
     color: #222;
     line-height: 1.2em;
-    border: 1px solid #C6C9CB;
+    border: 1px solid rgb(201,201,201);
     font-size: 1.1em;
     margin: 1.5em 0 1.5em 0;
     -webkit-box-shadow: 1px 1px 1px #d8d8d8;
@@ -258,3 +262,49 @@ div.viewcode-block:target {
     border-top: 1px solid #ac9;
     border-bottom: 1px solid #ac9;
 }
+
+
+/**
+ * Styling for field lists
+ */
+
+ /* grey highlighting of 'parameter' and 'returns' field */
+table.field-list {
+    border-collapse: separate;
+    border-spacing: 10px;
+    margin-left: 1px;
+    /* border-left: 5px solid rgb(238, 238, 238) !important; */
+}
+
+table.field-list th.field-name {
+    /* display: inline-block; */
+    padding: 1px 8px 1px 5px;
+    white-space: nowrap;
+    background-color: rgb(238, 238, 238);
+}
+
+/* italic font for parameter types */
+table.field-list td.field-body > p {
+    font-style: italic;
+}
+
+table.field-list td.field-body > p > strong {
+    font-style: normal;
+}
+
+/* reduced space around parameter description */
+td.field-body blockquote {
+    border-left: none;
+    margin: 0em 0em 0.3em;
+    padding-left: 30px;
+}
+
+
+/**
+ * See also
+ */
+
+div.seealso dd {
+    margin-top: 0;
+    margin-bottom: 0;
+}