Graph one: the HTML


Graph 2: the CSS


Figure 3: the browser display effect


Don't know why external CSS do not show the effect, ask everybody to give directions!

CodePudding user response:

The demo. CSS didn't save

CodePudding user response:

reference 1/f, not single, don't change name response:

demo. CSS didn't save

I saved

CodePudding user response:

refer to the second floor kcemjoy response:

Quote: reference 1/f, not single, don't change name response:

Demo. CSS didn't save

I saved

CodePudding user response:

reference 3/f is not single, don't change name response:

Quote: refer to the second floor kcemjoy response:

Quote: reference 1/f, not single, don't change name response:

Demo. CSS didn't save

I saved

Or you don't real save, careless, okay, thank you