Slider photos not visible on mobile

First of all thank you for all the help so far

When I open my website on my mobile phone the slider photo's don't appear.
What can I do about it?

If you want to check it the website = test.aangepastwonen.info

Thank you.

 

Hi maggiemae,

I have checked your website and find that your are using pdf file in slider in place of images.
So, kindly use images in slider of .jpg or .png format.

Thanks,
Praveen

 

Thanks! I changed it to a jpg. and now it is visible but not good.

See attachment.

I used the optimal size of the image.

What can I do?

 

Hi maggiemae,

Please paste the code given below in custom css.
(Appearance->Theme Options->Styling Options->Custom Css) of your dashboard.

Code:

.flexslider .slides img {
height: auto !important;
}
.flexslider .slides {
height: auto !important;
}

Thanks,
Praveen