THE WORLD'S LARGEST WEB DEVELOPER SITE

CSS Tutorial

CSS HOME CSS Introduction CSS Syntax CSS Selectors CSS How To CSS Comments CSS Colors CSS Backgrounds CSS Borders CSS Margins CSS Padding CSS Height/Width CSS Box Model CSS Outline CSS Text CSS Fonts CSS Icons CSS Links CSS Lists CSS Tables CSS Display CSS Max-width CSS Position CSS Overflow CSS Float CSS Inline-block CSS Align CSS Combinators CSS Pseudo-class CSS Pseudo-element CSS Opacity CSS Navigation Bar CSS Dropdowns CSS Image Gallery CSS Image Sprites CSS Attr Selectors CSS Forms CSS Counters CSS Website Layout CSS Units CSS Specificity

CSS Advanced

CSS Rounded Corners CSS Border Images CSS Backgrounds CSS Colors CSS Gradients CSS Shadows CSS Text Effects CSS Web Fonts CSS 2D Transforms CSS 3D Transforms CSS Transitions CSS Animations CSS Tooltips CSS Style Images CSS object-fit CSS Buttons CSS Pagination CSS Multiple Columns CSS User Interface CSS Variables CSS Box Sizing CSS Flexbox CSS Media Queries CSS MQ Examples

CSS Responsive

RWD Intro RWD Viewport RWD Grid View RWD Media Queries RWD Images RWD Videos RWD Frameworks RWD Templates

CSS Grid

Grid Intro Grid Container Grid Item

CSS Examples

CSS Templates CSS Examples CSS Quiz CSS Exercises CSS Certificate

CSS References

CSS Reference CSS Selectors CSS Functions CSS Reference Aural CSS Web Safe Fonts CSS Animatable CSS Units CSS PX-EM Converter CSS Colors CSS Color Values CSS Default Values CSS Browser Support

CSS User Interface


CSS User Interface

In this chapter you will learn about the following CSS user interface properties:

  • resize
  • outline-offset

Browser Support

The numbers in the table specify the first browser version that fully supports the property.

Property
resize 4.0 Not supported 5.0 4.0 15.0
outline-offset 4.0 15.0 5.0 4.0 9.5

CSS Resizing

The resize property specifies if (and how) an element should be resizable by the user.

This div element is resizable by the user!

To resize: Click and drag the bottom right corner of this div element.

Note: Internet Explorer does not support the resize property.

The following example lets the user resize only the width of a <div> element:

Example

div {
  resize: horizontal;
  overflow: auto;
}
Try it Yourself »

The following example lets the user resize only the height of a <div> element:

Example

div {
  resize: vertical;
  overflow: auto;
}
Try it Yourself »

The following example lets the user resize both the height and width of a <div> element:

Example

div {
  resize: both;
  overflow: auto;
}
Try it Yourself »

In many browsers, <textarea> is resizable by default. Here, we have used the resize property to disable the resizability:

Example

textarea {
  resize: none;
}
Try it Yourself »


CSS Outline Offset

The outline-offset property adds space between an outline and the edge or border of an element.

This div has an outline 15px outside the border edge.

Note: Outline differs from borders! Unlike border, the outline is drawn outside the element's border, and may overlap other content. Also, the outline is NOT a part of the element's dimensions; the element's total width and height is not affected by the width of the outline.

The following example uses the outline-offset property to add space between the border and the outline:

Example

div.ex1 {
  margin: 20px;
  border: 1px solid black;
  outline: 4px solid red;
  outline-offset: 15px;
}

div.ex2 {
  margin: 10px;
  border: 1px solid black;
  outline: 5px dashed blue;
  outline-offset: 5px;
}
Try it Yourself »

CSS User Interface Properties

The following table lists all the user interface properties:

Property Description
outline-offset Adds space between an outline and the edge or border of an element
resize Specifies whether or not an element is resizable by the user