What is a Placeholder in PowerPoint and How To Use It?

placeholder noun placeholder :placeholder-shown เป็น CSS pseudo-class ที่ใช้ตรวจสอบว่าช่อง input หรือ textarea แสดงผล placeholder อยู่หรือไม่ placeholder The placeholder text you set in the form tag is output into HTML as the value of the placeholder attribute in the input field For legacy browsers that don't

placeholder In a user interface, a placeholder is a temporary or example text or visual cue displayed within an input field, form field, or other content areas It provides