What is the difference between cssSelector & Xpath and which is better with respect to performance for cross browser testing?

What is the difference between cssSelector & Xpath and which is better with respect to performance for cross browser testing?

selenium selenium-webdriver xpath css-selectors webdriver

selenium

Select iframe using Python + Selenium

python selenium xpath iframe css-selectors

selenium

Is there an addon which you can test css selectors in firefox?

css selenium firefox-addon css-selectors

selenium

Selenium Compound class names not permitted

python selenium xpath css-selectors class-names

selenium

Need to find element in selenium by css

selenium webdriver css-selectors selenium-webdriver

selenium

How to get css class name using Selenium?

java selenium css-selectors

selenium

Python Selenium - get href value

python selenium xpath css-selectors webdriverwait

selenium

OR condition in CSS selector

css selenium css-selectors

selenium

How to use xPath in Selenium WebDriver to grab SVG elements?

java selenium svg xpath css-selectors

selenium

How to click a href link using Selenium

java selenium xpath css-selectors webdriverwait

selenium

How can I count the number of elements that match my CSS selector?

selenium css-selectors selenium-rc

selenium

InvalidSelectorException using CSS selector to locate "data-" attribute notated elements

selenium css-selectors webdriver

selenium

Can't get nth node in Selenium

xpath selenium css-selectors

selenium

NoSuchElementException, Selenium unable to locate element

selenium selenium-webdriver css-selectors webdriver selenium-chromedriver

selenium

What to use instead of CONTAINS() in CSS3

css selenium css-selectors selenium-rc

selenium