diff --git a/doc/_static/mpl.css b/doc/_static/mpl.css
index 879f564d1df2..226643bdb8d5 100644
--- a/doc/_static/mpl.css
+++ b/doc/_static/mpl.css
@@ -12,144 +12,10 @@ a:hover {
     color:  #CA7900;
 }
 
-table.highlighttable {
-    margin-left: 0.5em;
-}
-
-table.highlighttable td {
-    padding: 0 0.5em 0 0.5em;
-}
-
 .simple li>p {
     margin: 0;
 }
 
-div.responsive_screenshots {
-    /* Horizontally centered */
-    display: block;
-    margin: auto;
-
-    /* Do not go beyond 1:1 scale (and ensure a 1x4 tight layout) */
-    max-width: 640px;  /* at most 4 x 1:1 subfig width  */
-    max-height: 120px; /* at most 1 x 1:1 subfig height */
-}
-
-/* To avoid subfigure parts outside of the responsive_screenshots  */
-/* element (see <https://stackoverflow.com/q/2062258/>)            */
-span.clear_screenshots { clear: left; display: block; }
-
-div.responsive_subfig{
-    float: left;
-    width: 25%;  /* we want 4 subfigs in a row */
-
-    /* Include content, padding and border in width. This should */
-    /* avoid having to use tricks like "width: 24.9999%"         */
-    box-sizing: border-box;
-}
-
-div.responsive_subfig img {
-    /* Horizontally centered */
-    display: block;
-    margin: auto;
-
-    /* Possible downscaling */
-    max-width: 162px;  /* at most 1 x 1:1 subfig width  */
-    max-height: 139px; /* at most 1 x 1:1 subfig height */
-
-    width: 100%;
-}
-
-@media only screen and (max-width: 930px){
-    /* The value of 1000px was handcrafted to provide a more or less */
-    /* smooth transition between the 1x4 and the 2x2 layouts. It is  */
-    /* NB: it is slightly below 1024px: so one should still have a   */
-    /* row in a 1024x768 window                                      */
-
-    div.responsive_screenshots {
-        /* Do not go beyond 1:1 scale (and ensure a 2x2 tight layout) */
-        max-width: 324px;  /* at most 2 x 1:1 subfig width  */
-        max-height: 278px; /* at most 2 x 1:1 subfig height */
-    }
-
-    div.responsive_subfig {
-        width: 50%;  /* we want 2 subfigs in a row */
-    }
-}
-
-/* bullet boxes on main page */
-div.bullet-box-container {
-    display: flex;
-    flex-wrap: wrap;
-    margin: 1em 0;
-}
-
-div.bullet-box {
-    flex-grow: 1;
-    width: 28%;
-    margin: 0.4em;
-    padding: 0 1em;
-    background: #eff9ff;
-}
-
-div.bullet-box p:first-of-type {
-    font-size: 1.4em;
-    text-align: center;
-}
-
-div.bullet-box ul {
-    padding-left: 1.2em;
-}
-
-div.bullet-box li {
-    padding-left: 0.3em;
-    margin-bottom: 0.3em;
-}
-
-@media only screen and (max-width: 930px){
-    div.bullet-box {
-        flex: 0 0 90%;
-    }
-}
-
-/* community items on main page */
-div.box {
-    display: flex;
-    flex-flow: row wrap;
-}
-
-div.box-item {
-    flex: 0 0 45%;
-    padding: 4px;
-    margin: 8px 12px;
-}
-
-div.box-item img {
-    float: left;
-    width: 30px;
-    height: 30px;
-    fill: #888;
-
-}
-div.box-item p {
-    margin: 0 0 0 50px;
-}
-
-div.box-item ul {
-    margin: 0 0 0 50px;
-    padding-left: 20px;
-}
-
-hr.box-sep {
-    margin: 1em 2em;
-}
-
-@media only screen and (max-width: 930px){
-    div.box-item {
-        flex: 0 0 90%;
-    }
-}
-
-
 /* multi column TOC */
 .contents ul {
     list-style-type: none;
diff --git a/doc/conf.py b/doc/conf.py
index 16eaa4cbf4ff..0138e8c6848c 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -559,8 +559,6 @@ def matplotlib_reduced_latex_scraper(block, block_vars, gallery_conf,
 
 numpydoc_show_class_members = False
 
-html4_writer = True
-
 inheritance_node_attrs = dict(fontsize=16)
 
 graphviz_dot = shutil.which('dot')