Text box size height html

A tag is very important to give to the user to input filed to enter a content (data). Not only text format it also provides an option like – CheckBox and Radio Button.

Syntax

A simple syntax of HTML input text box size.

HTML Input Text Example

See below simple example, to write a name in a text field. For that in the example used a tag with an type=”text” in element.

   
HTML Input Text Box
 Enter Name:  

Output: How text box will look see below image.

Important Attributes

Here are some of the additional attributes you can use in the HTML input type text field. The adding an attribute will automatically support and give additional features to a text field.

Get the HTML Input Text Value

Get the value of a text field is easy. The Value attribute is a DOMString that contains the current value of the text entered into the input text field.

var x = document.getElementById("myText").value;

maxlength & minlength

See the example of how you can the maxlength & minlength text input attribute in HTML code.

   
HTML Input Text Box
 Name (3 to 10 characters):  

Output: Screenshot it.

Size Input Text Box

Using the Size attribute in the input html tag will indicating how many characters wide the input field should be. The value is numeric. Where the value must be a number greater than 0, and the default value is 20.

Placeholder – How to use

Just write a placeholder attribute with its value (what hint you want to show) in a tag.

   
HTML Input Text Box
 Enter Name:  

Output: See how placeholder will look in input text box.

Q: How to set HTML input text width and Height?

Answer: By using the style attribute in the tag you can give width and Height to the HTML input text box. See the below simple example of it.

   
HTML Input Text Box
 Enter Name: 

Output: See the below changed width and Height to HTML input text box.

Q: How to code HTML input text multiline?

Answer: For multiline text, you need to use a to get multiline input. For example address of the customer in the shopping site have to give option multiline. Another example of a comment section also has multiline. See below the code for HTML input multiline.

Do comment if you have any doubt and suggestions on this tutorial.

Note: The All HTML Input Text Box Examples are tested on Safari browser (Version 12.0.2).
OS: macOS 10.14 Mojave
Code: HTML 5 Version

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box-sizing

The box-sizing CSS property sets how the total width and height of an element is calculated.

Try it

By default in the CSS box model, the width and height you assign to an element is applied only to the element’s content box. If the element has any border or padding, this is then added to the width and height to arrive at the size of the box that’s rendered on the screen. This means that when you set width and height , you have to adjust the value you give to allow for any border or padding that may be added. For example, if you have four boxes with width: 25%; , if any has left or right padding or a left or right border, they will not by default fit on one line within the constraints of the parent container.

The box-sizing property can be used to adjust this behavior:

• content-box gives you the default CSS box-sizing behavior. If you set an element’s width to 100 pixels, then the element’s content box will be 100 pixels wide, and the width of any border or padding will be added to the final rendered width, making the element wider than 100px.
• border-box tells the browser to account for any border and padding in the values you specify for an element’s width and height. If you set an element’s width to 100 pixels, that 100 pixels will include any border or padding you added, and the content box will shrink to absorb that extra width. This typically makes it much easier to size elements. box-sizing: border-box is the default styling that browsers use for the , , and elements, and for elements whose type is radio , checkbox , reset , button , submit , color , or search .

Note: It is often useful to set box-sizing to border-box to lay out elements. This makes dealing with the sizes of elements much easier, and generally eliminates a number of pitfalls you can stumble on while laying out your content. On the other hand, when using position: relative or position: absolute , use of box-sizing: content-box allows the positioning values to be relative to the content, and independent of changes to border and padding sizes, which is sometimes desirable.

Syntax

box-sizing: border-box; box-sizing: content-box; /* Global values */ box-sizing: inherit; box-sizing: initial; box-sizing: revert; box-sizing: revert-layer; box-sizing: unset; 

The box-sizing property is specified as a single keyword chosen from the list of values below.

Values

This is the initial and default value as specified by the CSS standard. The width and height properties include the content, but does not include the padding, border, or margin. For example, .box renders a box that is 370px wide.

Here, the dimensions of the element are calculated as: width = width of the content, and height = height of the content. (Borders and padding are not included in the calculation.)

The width and height properties include the content, padding, and border, but do not include the margin. Note that padding and border will be inside of the box. For example, .box renders a box that is 350px wide, with the area for content being 330px wide. The content box can’t be negative and is floored to 0, making it impossible to use border-box to make the element disappear.

Here the dimensions of the element are calculated as: width = border + padding + width of the content, and height = border + padding + height of the content.

Formal definition

Formal syntax

Examples

Box sizes with content-box and border-box

This example shows how different box-sizing values alter the rendered size of two otherwise identical elements.

HTML

div class="content-box">Content boxdiv> br /> div class="border-box">Border boxdiv> 

CSS

div  width: 160px; height: 80px; padding: 20px; border: 8px solid red; background: yellow; > .content-box  box-sizing: content-box; /* Total width: 160px + (2 * 20px) + (2 * 8px) = 216px Total height: 80px + (2 * 20px) + (2 * 8px) = 136px Content box width: 160px Content box height: 80px */ > .border-box  box-sizing: border-box; /* Total width: 160px Total height: 80px Content box width: 160px - (2 * 20px) - (2 * 8px) = 104px Content box height: 80px - (2 * 20px) - (2 * 8px) = 24px */ > 

Result

Specifications

Browser compatibility

BCD tables only load in the browser

See also

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This page was last modified on Jul 18, 2023 by MDN contributors.

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Auto-Growing Inputs & Textareas

By default, and elements don’t change size based on the content they contain. In fact, there isn’t any simple HTML or CSS way to make them do that. Kinda funny, as that seems like a reasonable use-case. But of course, there are ways, my friend. There are always ways. I was thinking about this after Remy Sharp blogged about it recently in the context of inline elements.

Non-input elements expand naturally

It’s weird to me that there is no way to force an input element to mimic this behavior, but alas. We can make any element editable and input-like with the contenteditable attribute:

That will naturally grow to be the width it needs to be for the content it contains. If it was a or any other element that is block-level, it would also expand vertically as needed.

But are non-input elements accessible?

1. What about the fact that forms can be submitted with the Enter key?
2. What about the idea that form data is often serialized and sent along, while the code that’s doing it probably isn’t looking for a span?
3. Does it actually read the same as an input in a screen reader?
4. What other things¹ do inputs naturally do that I’m not thinking of?

As attracted as I am to the idea that we can get auto-resizing for free from the browser by using non-input elements, I’m also a little worried about (my) unknown usability and accessibility risk.

Resizing actual input elements

So let’s say we stick with and . Can we make them resize-able even though it’s not particularly natural?

One idea I had is to wrap the input in a relative inline parent and absolutely position it inside. Then, with JavaScript, we could sync the input value with a hidden span inside that wrapper, pushing the width wider as needed.

For textareas, one classic technique is to count the number of line-breaks, use that to set the height, then multiply it by the line-height. That works great for preformatted text, like code, but not at all for long-form paragraph-like content.

Here are all these ideas combined.

Shaw has a little JavaScript one-liner that is very clever. The JavaScript sets a data-* attribute on the element equal to the value of the input. The input is set within a CSS grid, where that grid is a pseudo-element that uses that data-* attribute as its content. That content is what stretches the grid to the appropriate size based on the input value.

I absolutely know that you fellow web nerds have solved this six ways to Sunday. Let’s see ’em in the comments.

1. Eric Bailey hit me up with a few thoughts off the top of his head: (1) There’s no accessible name. (2) It probably won’t work with voice control. (3) It will get ignored in High Contrast Mode.

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