webtidy
module for (X)HTML validation
RUN apt-get update && \
apt-get install -y libhtml-tidy-perl
RUN apt-get update && \
apt-get install -y libhtml-tidy-perl
RUN apt-get update && \
apt-get install -y libhtml-tidy-perl
RUN dnf install -y perl-HTML-Tidy
RUN apt-get update && \
apt-get install -y libhtml-tidy-perl