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並前往https://stackoverflow.com/questions/11197671/use-css-to-automatically-add-required-field-asterisk-to-form-inputs

Use CSS to automatically add 'required field' asterisk to form ...

Is that what you had in mind? http://jsfiddle.net/erqrN/1/ <label class="required">Name:</label> <input type="text"> <style> .required:after ...

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