I have written such articles before but use js scripts. The advantage is that it can display the file path.
If you can do not see the path, just display the custom buttons, there are other methods. The following is just the trick of using css to achieve it.
The key is to give the file file domain font-size and set a relatively large value to change the capitalization of the form (the appearance of each browser is different, but the capitalization has changed) as shown in the figure below:
input{font-size:100px;}
Then use position to position and transparency to achieve the desired effect. The specific code is as follows:
Copy the code