Many of my friends may encounter this situation when using Dreamweaver8: they linked the CSS file to the currently edited document and applied the defined CSS style to the page elements, but there is no effect in DW8. As shown in the following figure.
The main reason is that DW8 has a new "style rendering toolbar", which allows you to easily design different media types, such as screens, handheld devices, and print output. Other supported media types include projection Devices, TTY (Television Type Devices), and TV media types. It also provides the ability to enable or disable the rendering of all styles by switching the CSS display button.
Open the "style rendering toolbar" to open the "View" menu of DW8 and select "style rendering" under the "toolbar" sub-menu to open the toolbar panel in the DW8 environment.
1. Screen 2, print 3, handheld device 4, projector device 5, TTY 6, TV 7, turn on/off CSS
Click "open/close CSS" to activate the CSS style.