<html>
<body>
<p class="content">Site content goes here.</p>
</body>
<html>
content = driver.find_element_by_css_selector('p.content')
直接孩子:
<div>
<a>xx</a><!--选这个-->
</div>
css=div > a
内部孩子:
<div>
<div>
<a>xx</a><!--选这个-->
</div>
</div>
css=div a
<form>
<input name="username"/>
<input /><!--选这个-->
</div>
css=form input.username + input
ID:
<div id="example">
<div>
<a>xx</a><!--选这个-->
</div>
</div>
css=div#example > a
CLASS:
<div class="example">
<div>
<a>xx</a><!--选这个-->
</div>
</div>
css=div.example > a
css=form input[name='username']
css=input[name='continue'][type='button']
css=a[id^='id_prefix_'] #前缀
css=a[id$='_id_sufix'] #后缀
css=a[id*='id_pattern'] #正则匹配
<a>Log Out</a>
css=a:contains('Log Out')