page#1  page#2  page#3  page#4

#net a {  position: absolute;  left: -80px;  transition: 0.3s;  padding: 15px;  width: 100px;  text-decoration: none;  font-size: 20px;   border-radius: 0 5px 5px 0;}#net a:hover {  left: 0;}#page1 {  top: 20px;  background-color: #960018; color: #fff;}#page2 {  top: 80px;  background-color: #007FFF; color: #fff;}#page3 {  top: 140px;  background-color: #66FF00;color: #000;}#page4 {  top: 200px;  background-color: yellow;color: #000;}