How do i make the slider go full width at 1960px wide and 550px High ive changed it in the functions.php file and its not taking any effect the image i created in photoshop is exactly that size but when i check the slider image size its still showing up as
<img class="pngfix wp-post-image" width="1440" height="500" title="4 kWp system fully installed from £4995 ROI 17%" alt="4 kWp system fully installed from £4995 ROI 17%" src="http://www.greensun-solar.co.uk/wp-content/uploads/2014/12/Slider-test-1440x500.jpg">
Hi blazevic.is, add_image_size( 'slider-wide', 1440, 500, true ); // used on Featured Slider on Homepage Header for wide layout
Just replace the above code with add_image_size( 'slider-wide', 1960, 550, true ); // used on Featured Slider on Homepage Header for wide layout
Once before using download the regenerate thumbnails plugin and regenerate the thumbnails. Hope that may help you.