确定html节点的样式

Selenium通过Javascript获得了答案。

ChromeOptions Options = new ChromeOptions();
Options.AddArgument("--headless");
IWebDriver Driver = new ChromeDriver(Options);
Driver.Navigate().GoToUrl(@"file://Some_File.html");

// The correct style
var properties = ((IJavaScriptExecutor)Driver).ExecuteScript("return window.getComputedStyle(arguments[0],null).cssText", e);

Driver.Close();
Driver.Quit();