This tutorial shows how to change slider dimensions in WordPress templates (where slider height is specified via custom-function.php file).
In order to change slider image dimensions, you should edit \themes\themeXXXXX\includes\theme-init.php file:
Find slider-post-thumbnail and set the desired image size width/height in pixels. We have set 1170, 263. Original values were 1170, 491:
Save changes and upload the modified file. Go to slides section and re-upload slider images for all slides. You should upload images that have the same size or aspect ratio as you have defined in theme-init.php file. Be sure to re-upload images for all slides:
Refresh page. We have changed image dimensions. Now we should adjust height for slider area:
Download and open \themes\themeXXXXX\includes\custom-function.php file for editing. Find function child_slider_params and adjust height in percents. Save changes and upload modified file:
Clear browser cache, cookies and refresh the page. We have changed slider dimensions.
Feel free to check the detailed video tutorial below:
In the event you might need templates to choose from, go ahead and see responsive business wordpress themes.