from selenium import webdriver
from selenium.webdriver.firefox.options import Options
import time
options = Options()
options.headless = True
driver = webdriver.Firefox(options=options,executable_path=r"C:\geckodriver.exe")
driver.set_page_load_timeout (30)
driver.get('https://mobile.888.ru/sport/search?text=%D0%9B%D0%B8%D0%B2%D0%B5%D1%80%D0%BF%D1%83%D0%BB%D1%8C')
time.sleep(3)
html = driver.page_source
print(html)