Dec 09, 2011 · Anyway – how it working: when we select file – function ‘fileSelected’ is executing. We filter all unnecessary formats (allow to upload next formats: bmp, gif, jpg, png, tif), in case of huge file – we will draw warning message. Then, through FileReader::readAsDataURL we will draw live preview of selected file. CSS also allows us to select sibling elements using the various sibling selectors available. The above HTML elements are all siblings of input.toggle and we style them as follows If no option should be selected by default, create a placeholder option and select it as shown in the example.
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