https://www.mathworks.com/help/rptgen/ug/mlreportgen.dom.templatehtmlstyle-class.html
mlreportgen.dom.TemplateHTMLStyle - Parse existing styles within HTML template - MATLAB
Use an object of the mlreportgen.dom.TemplateHTMLStyle class to create a Document Object Model (DOM) representation of an existing style in an HTML template.
html templatedomparseexistingstyles