You can do this without using JavaScript and using only HTML You need to set the default select option disabled="" and selected="" and select tag required="". ... <看更多>

The selected HTML attribute is not accurate after the initial page load. It does not reflect the state of currently selected options, and is not ... ... <看更多>

If no data-placeholder value is present, it will default to "Select an Option" or "Select Some Options" depending on whether the select is single or multiple. ... <看更多>

... '<select data-placeholder="New Placeholder"', $html ); } return ... .com/thread/change-category-widget-default-text-select-a-category/. ... <看更多>

Make Placeholder For A Select Box Or Combo Box. 1,407 views1.4K views ... CSS Input Label Animation ... ... <看更多>