默认是蓝色，我想把它改成绿色。谁来帮帮我吧。我是新手。
<div class="container-fluid">
<div class="row-fluid">
<div class="span3" id="sidebar">
<ul class="nav nav-list bs-docs-sidenav nav-collapse collapse">
<li> <a href="dashboard_admin.php"><i class="icon-chevron-right"></i> Dashboard</a></li>
<li> <a href="add_employee.php"><i class="icon-chevron-right"></i> Add Employee</a> </li>
<li class="active"> <a href="view_edit_delete_emp.php"><i class="icon-chevron-right"></i> View Edit Delete Employee</a></li>
<li> <a href="add_users.php"><i class="icon-chevron-right"></i> Add User</a> </li>
<li> <a href="view_user.php"><i class="icon-chevron-right"></i> View User</a> </li>
<li> <a href="edit_delete_users.php"><i class="icon-chevron-right"></i> View Edit Delete User</a></li>
<li><a href="#"><i class="icon-chevron-right"></i> View Leave Request</a></li>
<li> <a href="#"><i class="icon-chevron-right"></i> Leave History</a> </li>
<li> <a href="#"><span class="badge badge-success pull-right">731</span> Employees</a></li>
<li> <a href="#"><span class="badge badge-success pull-right">812</span> Users</a></li>
<li> <a href="#"><span class="badge badge-info pull-right">27</span> Today's Leaves</a></li>
<li> <a href="#"><span class="badge badge-info pull-right">1,234</span> Leave Requests</a>
</li>
</ul>
</div>
改变边栏的background-color属性。但是首先通过检查来选择网页上的元素。右键单击页面元素上的，选择Inspect element ，检查是否有合适的属性。