HTML

HTML <input> TagDefinition and Usage The <input> tag specifies an input field where the user can enter data. <input> elements are used within a <form> element to declare input controls that allow users to input data. An input field can vary in many ways, depending on the type attribute. Attribute Value Description accept audio! video! image! MIME_type "pecifies the types of files that the server accepts #only for type$%file%& align left right top middle bottom Not supported in HTML5. "pecifies the alignment of an image input #only for type$%image%& alt text "pecifies an alternate te't for images #only for type$%image%& autocomplete on off "pecifies whether an <input> element should have autocomplete enabled autofocus autofocus "pecifies that an <input> element should automatically get focus when the page loads chec(ed chec(ed "pecifies that an <input> element should be pre) selected when the page loads #for type$%chec(bo'% or type$%radio%& disabled disabled "pecifies that an <input> element should be disabled form form_id "pecifies one or more forms the <input> element belongs to formaction URL "pecifies the *+L of the file that will process the input control when the form is submitted #for type$%submit% and type$%image%& formenctype application')www) form)urlencoded multipartform)data te'tplain "pecifies how the form)data should be encoded when submitting it to the server #for type$%submit% and type$%image%& formmethod get post ,efines the HTT- method for sending data to the action *+L #for type$%submit% and type$%image%& formnovalidate formnovalidate ,efines that form elements should not be validated when submitted formtarget .blan( .self .parent .top framename "pecifies where to display the response that is received after submitting the form #for type$%submit% and type$%image%& height pixels "pecifies the height of an <input> element #only for type$%image%& list datalist_id +efers to a <datalist> element that contains pre) defined options for an <input> element ma' number date "pecifies the ma'imum value for an <input> element ma'length number "pecifies the ma'imum number of characters allowed in an <input> element min number date "pecifies a minimum value for an <input> element multiple multiple "pecifies that a user can enter more than one value in an <input> element name text "pecifies the name of an <input> element pattern regexp "pecifies a regular e'pression that an <input> element/s value is chec(ed against placeholder text "pecifies a short hint that describes the e'pected value of an <input> element readonly readonly "pecifies that an input field is read)only re0uired re0uired "pecifies that an input field must be filled out before submitting the form si1e number "pecifies the width, in characters, of an <input> element src URL "pecifies the *+L of the image to use as a submit button #only for type$%image%& step number "pecifies the legal number intervals for an input field type button chec(bo' color date datetime datetime)local email file hidden image month number password radio range reset search submit tel te't time url wee( "pecifies the type <input> element to display value text "pecifies the value of an <input> element width pixels "pecifies the width of an <input> element #only for type$%image%& HTML <form> Tag Definition and Usage The <form> tag is used to create an HTML form for user input. The <form> element can contain one or more of the following form elements2 • <input> • <te'tarea> • <button> • <select> • <option> • <optgroup> • <fieldset> • <label> Attribute Value Description accept MIME_type Not supported in HTML5. "pecifies the types of files that the server accepts #that can be submitted through a file upload& accept)charset character_set "pecifies the character encodings that are to be used for the form submission action URL "pecifies where to send the form)data when a form is submitted autocomplete on off "pecifies whether a form should have autocomplete on or off enctype application')www) form)urlencoded multipartform)data te'tplain "pecifies how the form)data should be encoded when submitting it to the server #only for method$%post%& method get post "pecifies the HTT- method to use when sending form)data name text "pecifies the name of a form novalidate novalidate "pecifies that the form should not be validated when submitted target .blan( .self .parent .top "pecifies where to display the response that is received after submitting the form HTML <te'tarea> Tag Definition and Usage The <te'tarea> tag defines a multi)line te't input control. A te't area can hold an unlimited number of characters, and the te't renders in a fi'ed)width font #usually 3ourier&. The si1e of a te't area can be specified by the cols and rows attributes, or even better4 through 3""/ height and width properties. Attribute Value Description autofocus autofocus "pecifies that a te't area should automatically get focus when the page loads cols number "pecifies the visible width of a te't area disabled disabled "pecifies that a te't area should be disabled form form_id "pecifies one or more forms the te't area belongs to ma'length number "pecifies the ma'imum number of characters allowed in the te't area name text "pecifies a name for a te't area placeholder text "pecifies a short hint that describes the e'pected value of a te't area readonly readonly "pecifies that a te't area should be read)only re0uired re0uired "pecifies that a te't area is re0uiredmust be filled out rows number "pecifies the visible number of lines in a te't area wrap hard soft "pecifies how the te't in a te't area is to be wrapped when submitted in a form HTML <button> Tag Definition and Usage The <button> tag defines a clic(able button. 5nside a <button> element you can put content, li(e te't or images. This is the difference between this element and buttons created with the <input> element. Tip: Always specify the type attribute for a <button> element. ,ifferent browsers use different default types for the <button> element. Attribute Value Description autofocus autofocus "pecifies that a button should automatically get focus when the page loads disabled disabled "pecifies that a button should be disabled form form_id "pecifies one or more forms the button belongs to formaction URL "pecifies where to send the form)data when a form is submitted. 6nly for type$%submit% formenctype application')www)form)urlencoded multipartform)data te'tplain "pecifies how form)data should be encoded before sending it to a server. 6nly for type$%submit% formmethod get post "pecifies how to send the form) data #which HTT- method to use&. 6nly for type$%submit% formnovalidate formnovalidate "pecifies that the form)data should not be validated on submission. 6nly for type$%submit% formtarget .blan( .self .parent .top framename "pecifies where to display the response after submitting the form. 6nly for type$%submit% name name "pecifies a name for the button type button "pecifies the type of button reset submit value text "pecifies an initial value for the button HTML <select> Tag Definition and Usage The <select> element is used to create a drop)down list. The <option> tags inside the <select> element define the available options in the list. Attribute Value Description autofocus autofocus "pecifies that the drop)down list should automatically get focus when the page loads disabled disabled "pecifies that a drop)down list should be disabled form form_id ,efines one or more forms the select field belongs to multiple multiple "pecifies that multiple options can be selected at once name name ,efines a name for the drop)down list re0uired re0uired "pecifies that the user is re0uired to select a value before submitting the form si1e number ,efines the number of visible options in a drop)down list HTML <option> Tag Definition and Usage The <option> tag defines an option in a select list. <option> elements go inside a <select> or <datalist> element. Attribute Value Description disabled disabled "pecifies that an option should be disabled label text "pecifies a shorter label for an option selected selected "pecifies that an option should be pre)selected when the page loads value text "pecifies the value to be sent to a server HTML <optgroup> Tag Definition and Usage The <optgroup> is used to group related options in a drop)down list. 5f you have a long list of options, groups of related options are easier to handle for a user. Attribute Value Description disabled disabled "pecifies that an option)group should be disabled label text "pecifies a label for an option)group HTML <fieldset> Tag Definition and Usage The <fieldset> tag is used to group related elements in a form. The <fieldset> tag draws a bo' around the related elements. Attribute Value Description disabled disabled "pecifies that a group of related form elements should be disabled form form_id "pecifies one or more forms the fieldset belongs to name text "pecifies a name for the fieldset HTML <label> Tag Definition and Usage The <label> tag defines a label for an <input> element. The <label> element does not render as anything special for the user. However, it provides a usability improvement for mouse users, because if the user clic(s on the te't within the <label> element, it toggles the control. The for attribute of the <label> tag should be e0ual to the id attribute of the related element to bind them together. Attribute Value Description for element_id "pecifies which form element a label is bound to form form_id "pecifies one or more forms the label belongs to