说明：  摘要:网页素材,菜单导航,绿色菜单,二级菜单 绿色风格的网站二级菜单代码，上下两行显示，上边显示一级主菜单，下边则是对应一级菜单的二级分类菜单，是网站上经典的一种菜单布局风格，因此使用范围广，适合访客的操作习惯。绿色调显示得很清新，适用于环保类企业网站使用。
(He s a geek, startup investor, former software developer & entrepreneur, occasional tech blogger and internet marketing nerd. He s the founding partner of 500 Startups, an Internet seed fund and startup incubator that has invested in ~400 companies all over the world including Twilio, SendGrid, TaskRabbit, and Wildfire Interactive (acqd by Google in 2012). Previously, he managed early-stage internet investments for Founders Fund (2008-2010), and also ran the Facebook fbFund incubator program (2009). After leaving PayPal in 2004, Dave was an investor/advisor in ~15 startups including Bix.com (acqd by Yahoo in 2006), Mint.com (acqd by Intuit in 2009), Jambool (acqd by Google in 2010), TeachStreet (acqd by Amazon in 2011), and SlideShare (acqd by LinkedIn in 2012). His professional expertise: tech startups, venture capital, product management, internet marketing, business metrics, community evangelism.)