Shortcuts web editor

　　alt key: select multiple cursors simultaneously

　　.box hold down the tab key can quickly <div class = "box"> </ div>

　　#box holding down the tab key can quickly <div id = "box"> </ div>

　　ctrl + c to copy

　　ctrl + v to paste

　　ctrl + d key to copy the contents of the current line to the next line;

　　Style: w100% holding down the tab key to width: 100%;

　　　　　h100% hold the tab key to height: 100%;

　　　　　ml0 hold the tab key is margin-left: 0px;

　　　　　There are many such cases

　　In this case, we can shortcut keys, to achieve rapid development;