diff --git a/BUILD_ORDER b/BUILD_ORDER
index 8a3c557..64e487c 100644
--- a/BUILD_ORDER
+++ b/BUILD_ORDER
@@ -1,4 +1,5 @@
 python3-webencodings
+tinycss2
 xdotool
 gsound
 pytz
diff --git a/build-cinnamon.sh b/build-cinnamon.sh
index b9f128a..50a4fa8 100755
--- a/build-cinnamon.sh
+++ b/build-cinnamon.sh
@@ -43,6 +43,7 @@ CHECKDUPLICATE=0
 # Loop for all packages
 for dir in \
   python3-webencodings \
+  tinycss2 \
   xdotool \
   gsound \
   pytz \
diff --git a/tinycss2/README b/tinycss2/README
new file mode 100644
index 0000000..778f77e
--- /dev/null
+++ b/tinycss2/README
@@ -0,0 +1,3 @@
+All the web developers know the CSS format, but do they really know all
+the subtleties of its syntax? tinycss2 provides a CSS parser that is
+able to extract everything you want from stylesheets.
diff --git a/tinycss2/slack-desc b/tinycss2/slack-desc
new file mode 100644
index 0000000..9bc28aa
--- /dev/null
+++ b/tinycss2/slack-desc
@@ -0,0 +1,12 @@
+        |-----handy-ruler------------------------------------------------------|
+tinycss2: tinycss2 (low-level CSS parser and generator)
+tinycss2:
+tinycss2: All the web developers know the CSS format, but do they really
+tinycss2: know all the subtleties of its syntax? tinycss2 provides a CSS
+tinycss2: parser that is able to extract everything you want from stylesheets.
+tinycss2:
+tinycss2: Homepage: https://www.courtbouillon.org/tinycss2
+tinycss2:
+tinycss2:
+tinycss2:
+tinycss2:
diff --git a/tinycss2/tinycss2.SlackBuild b/tinycss2/tinycss2.SlackBuild
new file mode 100644
index 0000000..d21e548
--- /dev/null
+++ b/tinycss2/tinycss2.SlackBuild
@@ -0,0 +1,98 @@
+#!/bin/bash
+
+# Slackware build script for tinycss2
+
+# Copyright 2021 Dimitris Zlatanidis Orestiada, Greece
+# All rights reserved.
+#
+# Redistribution and use of this script, with or without modification, is
+# permitted provided that the following conditions are met:
+#
+# 1. Redistributions of this script must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+#
+#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
+#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
+#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+# Modified for CSB Project
+
+cd $(dirname $0) ; CWD=$(pwd)
+
+PRGNAM=tinycss2
+VERSION=${VERSION:-1.2.1}
+BUILD=${BUILD:-1}
+TAG=${TAG:-_csb}
+PKGTYPE=${PKGTYPE:-txz}
+
+if [ -z "$ARCH" ]; then
+  case "$( uname -m )" in
+    i?86) ARCH=i586 ;;
+    arm*) ARCH=arm ;;
+       *) ARCH=$( uname -m ) ;;
+  esac
+fi
+
+if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
+  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
+  exit 0
+fi
+
+wget -c https://files.pythonhosted.org/packages/75/be/24179dfaa1d742c9365cbd0e3f0edc5d3aa3abad415a2327c5a6ff8ca077/tinycss2-1.2.1.tar.gz
+
+TMP=${TMP:-/tmp/csb}
+PKG=$TMP/package-$PRGNAM
+OUTPUT=${OUTPUT:-/tmp}
+
+if [ "$ARCH" = "i586" ]; then
+  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
+  LIBDIRSUFFIX=""
+elif [ "$ARCH" = "i686" ]; then
+  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
+  LIBDIRSUFFIX=""
+elif [ "$ARCH" = "x86_64" ]; then
+  SLKCFLAGS="-O2 -fPIC"
+  LIBDIRSUFFIX="64"
+else
+  SLKCFLAGS="-O2"
+  LIBDIRSUFFIX=""
+fi
+
+set -e
+
+rm -rf $PKG
+mkdir -p $TMP $PKG $OUTPUT
+cd $TMP
+rm -rf $PRGNAM-$VERSION
+tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
+cd $PRGNAM-$VERSION
+chown -R root:root .
+find -L . \
+ \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
+  -o -perm 511 \) -exec chmod 755 {} \; -o \
+ \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
+  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
+
+python3 -m build --wheel --no-isolation
+
+python3 -m installer --destdir "$PKG" dist/*.whl
+
+find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
+  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true
+
+mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
+cp -a LICENSE PKG-INFO README.rst $PKG/usr/doc/$PRGNAM-$VERSION
+cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
+
+mkdir -p $PKG/install
+cat $CWD/slack-desc > $PKG/install/slack-desc
+
+cd $PKG
+/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE