cssAudio - Activefile-genericCSS - ActiveGeneric - ActiveHTML - ActiveImage - ActiveJS - ActiveSVG - ActiveText - Activefile-genericVideo - ActiveLovehtmlicon-new-collectionicon-personicon-teamlog-outoctocatpop-outspinnerstartv

Pen Settings

CSS Base

Vendor Prefixing

Add External Stylesheets/Pens

Any URL's added here will be added as <link>s in order, and before the CSS in the editor. If you link to another Pen, it will include the CSS from that Pen. If the preprocessor matches, it will attempt to combine them before processing.

+ add another resource

You're using npm packages, so we've auto-selected Babel for you here, which we require to process imports and make it all work. If you need to use a different JavaScript preprocessor, remove the packages in the npm tab.

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

Use npm Packages

We can make npm packages available for you to use in your JavaScript. We use webpack to prepare them and make them available to import. We'll also process your JavaScript with Babel.

⚠️ This feature can only be used by logged in users.

Code Indentation

     

Save Automatically?

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.

            
              .content.l-flexV--c
  p
    button#btn.b-menu
    button#jsBtn.b-menu
  label(for="btn") click
            
          
!
            
              body
  background-color #000
  color #fff
.content
  position fixed
  top 0
  left 0
  width 100%
  height 100%
.l-flexV--c
  display flex
  flex-flow column nowrap
  align-items center
  justify-content center
  
button
  border none
  outline none
  box-shadow none
  background none
  color currentColor
  padding 0
  cursor pointer

.b-menu
  width 25px
  height 25px
  position relative
  &:before,
  &:after
    content ' '
    position absolute
    background-color #fff
    display block
    width 100%
    height 3px
    left 0
    top 11px
    border-radius 3px
    transition all .5s
    transform-origin 50% 50%
  &:before
    transform translateY(-6px)
  &:after
    box-shadow 0 6px 0 0 #fff
  &:focus:before
    transform rotateZ(45deg) translateY(0)
  &:focus:after
    box-shadow 0 0 0 0 #fff
    transform rotateZ(135deg) translateY(0)
            
          
!
            
              let btn = document.querySelector('#jsBtn')
let status = true
let focus = function () {
  setTimeout(() => {
    btn.focus()
    // status && blur()
 }, 2000)
}
let blur = function () {
  setTimeout(() => {
    btn.blur()
    status && focus()
  }, 2000)
}

focus()


            
          
!
999px
🕑 One or more of the npm packages you are using needs to be built. You're the first person to ever need it! We're building it right now and your preview will start updating again when it's ready.
Loading ..................

Console