i can't change the button style

[徐雪峰]

i can't change then button style
i copy the code from the sample.but it doesn't work.
toolbar: {
            cls: 'pq-toolbar-export',

[paramvir]

If you are using bootstrap, then please follow this topic to restore button style:

https://paramquery.com/pro/tutorial#topic-bootstrap

[徐雪峰]

but i don't use the bootstrap style.
i want to use the jquery ui or  whatever any other style to test.
but i don't know why not it doesn't work.

[paramvir]

Please share a jsfiddle / stackblitz so that I can check it.