HTML Input Attributes

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Input attributes define how input fields behave.

Common Input Attributes

<input 
  type="text"
  name="username"
  id="user"
  value="John"
  placeholder="Enter name"
  required
  readonly
  maxlength="20">

Attributes Explained

• name → field identifier
• id → unique element ID
• value → default value
• placeholder → hint text
• required → mandatory field
• readonly → non-editable
• maxlength → character limit

Important Notes

• Attributes improve usability
• Validation can be client-side
• Use meaningful names