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Do you need a modal popup on your website when a user clicks a link or button? We typically see these in use for logins, newsletter signups, advertising, and more. Most often they are created using a bit of JavaScript trickery, but these days they can relatively easily be coded with only CSS. In this post we’ll show you 15 examples of various ways this can be accomplished. Let’s have a look!

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CSS Responsive Modal
This responsive example adjusts to the browser size and goes full screen on smaller devices.

See the Pen CSS Responsive Modal by Thom Griggs (@thomgriggs)on CodePen.0

CSS Modal
This example includes some smooth animations on open and close actions.

See the Pen CSS Modal by Pete Nawara (@petebot)on CodePen.0

CSS Modal :target Selector
A clever use of the :target selector to open a popup simply by toggling it’s opacity.

See the Pen CSS Modal :target Selector by Jake Albaugh (@jakealbaugh)on CodePen.0

Pure CSS Modal Box
Interesting use of labels and inputs to create a modal popup.

See the Pen Pure CSS modal box by Kasper Mikiewicz (@Idered)on CodePen.0

Pure CSS Modal
A really nice animation to open a full screen modal popup.

See the Pen Pure CSS Modal by Mark Holmes (@SMLMRKHLMS)on CodePen.0

Pure CSS Modal Popup
Another use of a label and input to utilize the checked state to show the modal.

See the Pen Pure CSS modal by Austin Lord (@ohnoitsaustin)on CodePen.0

Pure CSS Modals
Four different entry and exit animations are shown in this example.

See the Pen Pure CSS Modals by Akshay (@akzhy)on CodePen.0

Pure CSS Modal
Smooth animations highlight this example.

See the Pen Pure CSS Modal – #15 by Ivan Grozdic (@ig_design)on CodePen.0

Three CSS Modals
Three variations of background opacity are in this example.

See the Pen CSS Modals (Modal v2) by Abubaker Saeed (@AbubakerSaeed)on CodePen.0

CSS3 Modal Example
This modal popup slides up when it’s opened.

See the Pen css3 modal example by Felipe Nunes (@willpower)on CodePen.0

Pure CSS Modal window / Login & Sign up / Tabs / All Responsive
There is a LOT going on with this one, including tabs on the modal popup and responsive design throughout.

See the Pen Pure CSS Modal window / Login & Sign up / Tabs / All Responsive by Andrew (@AndrewBeznosko)on CodePen.0

CSS Modal
Another example using the :target selector, with a slide down modal entrance.

See the Pen Css Modal by Jon Ander Pérez (@JonAnderDev)on CodePen.0

Pure CSS modal dialog with sliding content
A somewhat simple setup, but with a content slider in it.

See the Pen Pure CSS Modal + Slider by Marvin Orendain (@marv117)on CodePen.0

CSS Modal Boxes for all browsers
A version that goes deep into older browser support.

See the Pen CSS Modal Boxes for all browsers by Patrick (@cara-tm)on CodePen.0

Modal (CSS Only)
For our final selection, we have a pretty standard modal popup with a smooth animated entrance and exit.

See the Pen Modal (CSS only) by Simon (@Index)on CodePen.0

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