ExCSS getting and setting CSS Example

getAndSetCss.cs

public void WorkWithExCss(string path)
{
        // With nuget package (2.0.6) ref: https://github.com/TylerBrinks/ExCSS

        // read an existing stylesheet
        var css = System.IO.File.ReadAllText(path);

        var stylesheet = new ExCSS.Parser().Parse(css);

        // Assuming the stylesheet has a selector for 'html'
        var info = stylesheet.StyleRules.First(i => i.Selector.ToString() == "html");
        var selector = info.Selector;
        var firstCssProperty = info.Declarations.First();
        var valueObj = firstCssProperty.Term;
        var value = valueObj.ToString();



        // Create a new stylesheet
        var stylesheetNew = new ExCSS.Parser().Parse(".fake{ color:none;  }");

        while(stylesheetNew.Rules.Count() > 0)
        {
            stylesheetNew.Rules.RemoveAt(0);
        }

        ExCSS.StyleRule r = new ExCSS.StyleRule();
        r.Selector = new ExCSS.SimpleSelector("h2");
        var prop1 = new ExCSS.Property("background-color");
        prop1.Term = new ExCSS.PrimitiveTerm(ExCSS.UnitType.Unknown, "red");
        r.Declarations.Add(prop1);

        stylesheetNew.Rules.Add(r);

        var newSheet = stylesheetNew.ToString(friendlyFormat: true, indentation: 0);
}