diff --git a/docs/browser-icons.css b/docs/browser-icons.css
index 33a44889..68e0604d 100644
--- a/docs/browser-icons.css
+++ b/docs/browser-icons.css
@@ -1,4 +1,7 @@
-/* video */
+/* video, alternative 1:
+   top-left icon, just like the other formats
+=======================================================================
+
 #ggrid>a:is(
 [href$=".mkv"i],
 [href$=".mp4"i],
@@ -6,6 +9,40 @@
 ):before {
     content: '📺';
 }
+*/
+
+
+
+/* video, alternative 2:
+   play-icon in the middle of the thumbnail
+=======================================================================
+*/
+#ggrid>a:is(
+[href$=".mkv"i],
+[href$=".mp4"i],
+[href$=".webm"i],
+) {
+	position: relative;
+	overflow: hidden;
+}
+#ggrid>a:is(
+[href$=".mkv"i],
+[href$=".mp4"i],
+[href$=".webm"i],
+):before {
+    content: '▶';
+	opacity: .8;
+	margin: 0;
+	padding: 1em .5em 1em .7em;
+	border-radius: 9em;
+	line-height: 0;
+	color: #fff;
+	text-shadow: none;
+	background: rgba(0, 0, 0, 0.7);
+	left: calc(50% - 1em);
+	top: calc(50% - 1.4em);
+}
+
 
 
 /* audio */
@@ -21,6 +58,7 @@
 }
 
 
+
 /* image */
 #ggrid>a:is(
 [href$=".jpg"i],
diff --git a/docs/notes.sh b/docs/notes.sh
index 29dda774..889ee1ec 100644
--- a/docs/notes.sh
+++ b/docs/notes.sh
@@ -130,6 +130,9 @@ sqlite3 .hist/up2k.db 'select * from mt where k="fgsfds" or k="t:mtp"' | tee /de
 for ((f=420;f<1200;f++)); do sz=$(ffmpeg -y -f lavfi -i sine=frequency=$f:duration=2 -vf volume=0.1 -ac 1 -ar 44100 -f s16le /dev/shm/a.wav 2>/dev/null; base64 -w0 </dev/shm/a.wav | gzip -c | wc -c); printf '%d %d\n' $f $sz; done | tee /dev/stderr | sort -nrk2,2
 ffmpeg -y -f lavfi -i sine=frequency=1050:duration=2 -vf volume=0.1 -ac 1 -ar 44100 /dev/shm/a.wav
 
+# play icon calibration pics
+for w in 150 170 190 210 230 250; do for h in 130 150 170 190 210; do /c/Program\ Files/ImageMagick-7.0.11-Q16-HDRI/magick.exe convert -size ${w}x${h} xc:brown -fill orange -draw "circle $((w/2)),$((h/2)) $((w/2)),$((h/3))" $w-$h.png; done; done
+
 
 ##
 ## vscode