Pen Settings

HTML

CSS

CSS Base

Vendor Prefixing

Add External Stylesheets/Pens

Any URLs added here will be added as <link>s in order, and before the CSS in the editor. You can use the CSS from another Pen by using its URL and the proper URL extension.

+ add another resource

JavaScript

Babel includes JSX processing.

Add External Scripts/Pens

Any URL's added here will be added as <script>s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.

+ add another resource

Packages

Add Packages

Search for and use JavaScript packages from npm here. By selecting a package, an import statement will be added to the top of the JavaScript editor for this package.

Behavior

Auto Save

If active, Pens will autosave every 30 seconds after being saved once.

Auto-Updating Preview

If enabled, the preview panel updates automatically as you code. If disabled, use the "Run" button to update.

Format on Save

If enabled, your code will be formatted when you actively save your Pen. Note: your code becomes un-folded during formatting.

Editor Settings

Code Indentation

Want to change your Syntax Highlighting theme, Fonts and more?

Visit your global Editor Settings.

HTML

              
                // Just a simple CSS tooltip. I only implemented a bottom
// but it can be easily adapted to have other positions.
// eg: .tooltip.top or .tooltip.left

// Originally I had used the title attribute on the anchor,
// however the browser-based tooltip functionality will still
// trigger if the user hovers long enough. It's easier to use
// a custom attribute.

a.tooltip.demo(href="#", data-tooltip="This is some basic tooltip content that lives in a data attribute.") Hover over me
              
            
!

CSS

              
                $tt-width = 250px
$tt-triangle-height = 10px
$tt-v-offset-start = 12px
$tt-v-offset-end = 5px
$tt-bg-color = rgba(0,0,0,0.5) 
$tt-anim-duration = 400ms
$tt-anim-delay = 200ms

.tooltip
  position: relative
  box-sizing: border-box

  &:after, &:before
    visibility: hidden
    opacity: 0
    position: absolute
    left: 50%
    box-sizing: border-box

  &:after
    content: attr(data-tooltip)
    background: $tt-bg-color
    top: 100%
    margin-top: $tt-triangle-height + $tt-v-offset-start
    padding: 10px
    color: white
    line-height: 1.5
    width: $tt-width
    margin-left: ($tt-width / -2)
    border-radius: 4px

  &:before
    content: ""
    top: 100%
    margin-top: $tt-v-offset-start
    margin-left: ($tt-triangle-height / -2) 
    border-left: $tt-triangle-height solid transparent
    border-right: $tt-triangle-height solid transparent
    border-bottom: $tt-triangle-height solid $tt-bg-color

  &:hover
    &:after, &:before
      transition: all $tt-anim-duration ease $tt-anim-delay
      visibility: visible
      opacity: 1
    &:after
      margin-top: $tt-v-offset-end + $tt-triangle-height
    &:before
      margin-top: $tt-v-offset-end


// Just for Codepen... styling and etc
body, html
  width: 100%
  height: 100%
  background: #d1adcf
  background: -moz-linear-gradient(-45deg,  #d1adcf 0%, #6393c1 100%)
  background: -webkit-gradient(linear, left top, right bottom, color-stop(0%,#d1adcf), color-stop(100%,#6393c1))
  background: -webkit-linear-gradient(-45deg,  #d1adcf 0%,#6393c1 100%)
  background: -o-linear-gradient(-45deg,  #d1adcf 0%,#6393c1 100%)
  background: -ms-linear-gradient(-45deg,  #d1adcf 0%,#6393c1 100%)
  background: linear-gradient(135deg,  #d1adcf 0%,#6393c1 100%)

.demo
  width: 160px
  text-align: center
  padding: 10px 0
  background: rgba(255,255,255,0.6)
  border-radius: 4px
  position: absolute
  left: 50%
  margin-left: -80px
  top: 45%
  text-transform: uppercase
  font-size: 12px
  letter-spacing: 2px
  text-decoration: none
  font-family: Verdana
  color: #000
  box-shadow: 0px 2px 0px 1px rgba(0,0,0,0.1)

  &:before, &:after
    font-size: 14px
    letter-spacing: 0
    text-transform: none
    font-family: Arial, helvetica, sans-serif
              
            
!

JS

              
                
              
            
!
999px

Console