css: .bx-wrapper {margin: 10px auto 7px !important;}

Hello,
please have a look to railfreak.de. I want to have more space above the slider and therefore changed css as follows: .bx-wrapper {margin: 10px auto 7px !important;}

Unfortunately, it does not work. What can I do?

Many thanks & best regards

https://ww.wp.xz.cn/plugins/advanced-post-slider/