Documentation: Fix CSS issue (#1154)

* Fix css issue

* Fix css issues on markers and icons

Author: gjmooney

docs/_static/main_stylesheet.css

@@ -1,4 +1,10 @@
-.wy-nav-content{
-    max-width: 1000px;
-    margin: auto;
+.wy-nav-content {
+  max-width: 1000px;
+  margin: auto;
+}
+
+/* Undo img background from pydata-sphinx-theme dark theme */
+html[data-theme="dark"] img:not(.only-dark):not(.dark-light) {
+  background-color: transparent !important;
+  padding: 0 !important;
 }

docs/conf.py

@@ -62,6 +62,14 @@
 #    "../../examples/WealthOfNations.ipynb", # did not install bqplot widget as a federated extension?
     "../../examples/WidgetControl.ipynb",
 ]
+
+# Output file base name for HTML help builder.
+html_theme = "pydata_sphinx_theme"
+#html_theme_path = [pydata_sphinx_theme.get_html_theme_path()]
+htmlhelp_basename = 'ipyleafletdoc'
+html_static_path = ['_static']
+
+
 def setup(app):
     app.add_css_file("main_stylesheet.css")
 
@@ -77,8 +85,3 @@ def setup(app):
 highlight_language = 'python'
 pygments_style = 'sphinx'
 
-# Output file base name for HTML help builder.
-html_theme = "pydata_sphinx_theme"
-#html_theme_path = [pydata_sphinx_theme.get_html_theme_path()]
-htmlhelp_basename = 'ipyleafletdoc'
-html_static_path = ['_static']