文字空心效果
See the Pen mOQMKZ by abcdGJJ (@abcdGJJ) on CodePen.
鼠标悬浮动画效果
See the Pen xgJBQK by abcdGJJ (@abcdGJJ) on CodePen.
菜单切换效果
See the Pen apXVXV by abcdGJJ (@abcdGJJ) on CodePen.
程序员的浪漫
See the Pen The programmer’s romantic by abcdGJJ (@abcdGJJ) on CodePen.
侧边栏链接悬浮切换效果
See the Pen jBmvJa by abcdGJJ (@abcdGJJ) on CodePen.
三角形剪裁效果
See the Pen aGEmPK by abcdGJJ (@abcdGJJ) on CodePen.
文字描边效果
http://www.w3cplus.com/css3/text-stroke.html