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A Tale of Four Properties That are kinda related to shapes in CSS Chris Coyier @chriscoyier // CodePen • CSS-Tricks • ShopTalk

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LET'S JUST SAY

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YOU REALLY LIKE REALLY

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THEY MIGHT BE GIANTS

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YOU REALLY ONLY HAVE One Choice

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FAN SITE!!!!

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LYRICS ANDANDAND OMGSTUFFFFF What goes on a fan site?

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GUESTBOOK TMBG!!!! LYRICS!!!! PHOTOS!!!! CLUBHOUSE VISITOR COUNTER: 1113459784

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Let's make a SUPER FUN lyrics page for PARTICLE MAN

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Particle Man

Particle man, particle man
Doing the things a particle can
What's he like? It's not important
Particle man

Is he a dot, or is he a speck?
When he's underwater does he get wet?
Or does the water get him instead?
Nobody knows, Particle man

Triangle man, Triangle man
Triangle man hates particle man
They have a fight, Triangle wins
Triangle man

Universe man, Universe man
Size of the entire universe man
Usually kind to smaller man
Universe man

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Particle Man

Particle man, particle man
Doing the things a particle can
What's he like? It's not important
Particle man

Is he a dot, or is he a speck?
When he's underwater does he get wet?
Or does the water get him instead?
Nobody knows, Particle man

Triangle man, Triangle man
Triangle man hates particle man
They have a fight, Triangle wins
Triangle man

Universe man, Universe man
Size of the entire universe man
Usually kind to smaller man
Universe man

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I AM GONNA NEED THAT TEXT IDEA TIME TO BE ALL SLANTED UP. LIKE TRIANGLE MAN!!!!

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I AM GONNA NEED THA IDEA TIME TO BE ALL SLANTED LIKE TRIANGLE

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Particle Man

Particle man, particle man
Doing the things a particle can
What's he like? It's not important
Particle man
Is he a dot, or is he a speck?
When he's underwater does he get wet?
Or does the water get him instead?
Nobody knows, Particle man
Triangle man, Triangle man
Triangle man hates particle man
They have a fight, Triangle wins
Triangle man
Universe man, Universe man
Size of the entire universe man
Usually kind to smaller man
Universe man
Hey it's got the
right indie spirit!
but we can do
"better", I guess.

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ELEMENT THAT IS FLOATED

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There is a cool property that allows us to SHAPE that floated element. (In the future, we might be able to do this without having to float the element with CSS exclusions.)

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.shape { float: left; width: 200px; height: 200px; } ELEMENT THAT IS FLOATED

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ELEMENT THAT IS FLOATED .shape { float: left; width: 200px; height: 200px; shape-outside }

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ELEMENT THAT IS FLOATED .shape { float: left; width: 200px; height: 200px; shape-outside: polygon( ); }

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ELEMENT THAT IS FLOATED .shape { float: left; width: 200px; height: 200px; shape-outside: polygon( 100px 0, 200px 200px, 0 200px ); }

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ELEMENT THAT IS FLOATED .shape { float: left; width: 200px; height: 200px; shape-outside: polygon( 100px 0, 200px 200px, 0 200px ); }

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shape-outside is like chipping away at a floated element. redeﬁning

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You can even ANIMATE it.

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.shape { transition: shape-outside 2s ease-in-out; float: left; width: 99%; height: 100%; } .triangle-off { shape-outside: polygon(0 0, 0 100%, 0 100%, 0 0); } .triangle-man { shape-outside: polygon(0 0, 0 100%, 50% 100%, 0 0); } Basically a zero-width triangLE the real triangle

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https://codepen.io/netsi1964/pen/gLvyxj

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NOW LET'S DO UNIVERSE MAN

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UNIVERSE MAN HE's GONNA BUTT IN AND SMASH HIS BELLY ALL UP IN THIS TEXT!!!!

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https:/ /www.youtube.com/watch?v=LsAiCs66l40

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shape-outside can take a circle() or ellipse() as well as polygon().

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.shape { transition: shape-outside 2s ease-in-out; float: left; width: 99%; height: 100%; } .universe-off { shape-outside: ellipse(200px 200px at 0 -300px); } .universe-man { shape-outside: ellipse(200px 200px at 0 300px); } Moved to nowheresville

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floated thing

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button.addEventListener("click", function() { // Immediately remove base class xman.classList.remove("triangle-man", "universe-man"); clickedGuy = button.getAttribute("data-class"); if (currentGuy === "") { xman.classList.add(clickedGuy); currentGuy = clickedGuy; } else { // Add the class for transitioning OFF xman.classList.add(currentGuy + "-off"); xman.classList.remove(currentGuy); setTimeout(function() { xman.classList.remove(currentGuy + "-off"); // Add the final ON class xman.classList.add(clickedGuy + "-off"); setTimeout(function() { xman.classList.add(clickedGuy); currentGuy = clickedGuy; }, 100); }, 2000); } You can't transition a polygon() to an ellipse() This javascript is all about manipulating classes so transitions are always shape-to- shape

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There is actually tasteful stuff you can do with shape-outside()

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https://codepen.io/stacy/pen/aWKerN

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MAYBE PERSON MAN?

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polygon() circle() ellipse() inset() path() url() shape-outside ❌ #

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PERSON MAN?

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polygon() circle() ellipse() inset() path() url() shape-outside ❌ This is all assuming we're in a browser that supports shape-outside at all!

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You can kinda fake curves with polygons with lots of points...

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Let's just put a pin in that.

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WE NEED TO DEAL WITH PARTICLE MAN OMGG!!!!

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WITH PARTICLE MAN OMGG!!!! HE NEEDS TO BE FLYING ALL AROUND THIS SUCKAAAA LIKE A PARTICLE WOULD!!!!

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AIN't no polygon() gonna work here. I need fluid motion action!!!!

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Fortunately there is a perfect CSS property for us: offset-path()

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Actually, it used to be called motion-path()

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.thing-that-moves { /* "Old" syntax. Available in Blink browsers as of ~October 2015 */ motion-path: ; /* Currently spec'd syntax. Should be in stable Chrome as of ~December 2016 */ offset-path: ; }

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.thing-that-moves { /* "Old" syntax. Available in Blink browsers as of ~October 2015 */ motion-path: path("M 5 5 m -4, 0 a 4,4 0 1,0 8,0 a 4,4 0 1,0 -8 /* Currently spec'd syntax. Should be in stable Chrome as of ~December 2016 */ offset-path: path("M 5 5 m -4, 0 a 4,4 0 1,0 8,0 a 4,4 0 1,0 -8 }

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PATHS ARE AWESOME they can draw anything!!!! All other drawing is syntactic sugar!!!!

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Path comes from SVG land.

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https://css-tricks.com/svg-path-syntax-illustrated-guide/

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#particle-man { width: 5px; height: 5px; background: blue; offset-path: path('m68.5,161c0,0 53,-121 152,-66c99,55 146,241 293,99c147,-142 -54,-163 -126.5,-126c-72.5,37 -92.5,369 -229.5,249c-137,-120 55,-222 145,-193c90,29 6,284 104,222c98,-62 240,-319 -75,-268c-315,51 167,336 -91,292c-258,-44 -172,-209 -172,-209z'); animation: is-he-a-dot-or-is-he-a-spec 3s linear infinite; } @keyframes is-he-a-dot-or-is-he-a-spec { 100% { motion-offset: 100%; } /* defaults to 0 */ } HTML CSS

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Here's the rub: offset-path only takes path()

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A litttttttle bit WHAT THE F*CK. A litttttttle bit understandable.

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It is called offset-path... But more importantly, paths have a direction. circle() is a nice syntax for a circle, but it doesn't tell you what direction to travel along it all by itself. A path does.

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polygon() circle() ellipse() inset() path() url() shape-outside ❌ offset-path ❌ ❌ ❌ ❌ ❌

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There is actually tasteful, nice stuff you can do with offset-path()

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WE GONNA NEED SOME SURPRISING REVEALS! IDEA TIME

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LET's make a lyrics page for your racist friend!!!!

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You can clip elements! With clip-path!

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Remember how with shape-outside we could use shapes like polygon() and circle()? Those work with clip-path too! The old name was clip.

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Here's another one: inset()

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clip-path: inset( 0 /* top */ 20px /* right */ 20px /* bottom */ 280px /* left */ );

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.racist-friend { position: fixed; bottom: -4px; left: 0; display: block; width: 500px; transition: 1.5s; transform: translateX(-200px); clip-path: inset(0 20px 20px 280px); &:hover { transform: translateX(0); clip-path: inset(0 0 0 0); } }

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There is actually tasteful, nice stuff you can do with clip-path()

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clip-path: polygon( 0 0, 100% 4%, 100% 93%, 0 100% ); clip-path: polygon( 0 0, 100% 6%, 100% 100%, 0 94% ); https://codepen.io/chriscoyier/pen/EVQweM?editors=1100

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div { clip-path: polygon(100% 0%, 75% 50%, 100% 100%, 25% 100%, 0% 50%, 25% 0%); animation: shimmy 1s infinite alternate ease- in-out; } @keyframes shimmy { 100% { clip-path: polygon(75% 0%, 100% 50%, 75% 100%, 0% 100%, 25% 50%, 0% 0%); } } https://codepen.io/chriscoyier/pen/EyjvgV

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https://codepen.io/chriscoyier/pen/wBKPOm/

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div { transition: 0.4s cubic-bezier(1, -1, 0, 2); clip-path: polygon(50% 5%, 0% 100%, 100% 100%); } div:hover { clip-path: polygon(50% 19%, 0 76%, 100% 76%); }

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https://codepen.io/noeldelgado/pen/PZJGLx?ed

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https://codepen.io/suez/pen/grJONP

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Guess what? It's sad. No path()

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polygon() circle() ellipse() inset() path() url() shape-outside ❌ offset-path ❌ ❌ ❌ ❌ ❌ clip-path ❌ ✂

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There are ways to get curved clipping: 1) Use clip-path: url("#clipPath"); 2) Use mask which can point to an SVG file, which can have paths.)

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SO. SPEAKING OF SVG.

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SO. SPEAKING OF SVG.

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SO. SPEAKING OF SVG.

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SVG doesn't have wrapped text or floats, so shape-outside isn't really relevant. SVG has clipping and masking covered with and . SVG has for animating along a path. But it's part of SMIL.

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My suspicion of why we've gotten so much of this stuff in CSS recently is: 1) The popularity of SVG recently. 2) The proposed deprecation of SMIL.

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WHERE WAS I

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path { /* Yes */ d: path("M 200 200 v 20 h -20"); } polygon { /* No */ points: polygon("0,0 30,0 20,20 0,20"); /* No */ points: "0,0 30,0 20,20 0,20"; } circle { /* Yes */ cx: 40; /* Yes */ cy: 40; /* Yes */ r: 20; } ellipse { /* Yes */ rx: 10; /* Yes */ ry: 10; } rect { /* Yes */ x: 10; /* Yes */ y: 100; /* Yes */ width: 300px; /* Weird */ /* Yes */ height: 20px; /* Weird */ }

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polygon() circle() ellipse() inset() path() url() shape-outside offset-path ❌ ❌ ❌ ❌ clip-path ❌ d ~ ~ ~ ~ ~

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GOSH IT WOULD BE NICE

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If shape-outside could use path() If shape-outside could use url(#fragment) To know if path() going to stay like it is. To know what's up with unitless/lengths. If could use polygon() WOULD BE NICE

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BUT ANYWAY

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Word on the street is the CSS folks have a desire to reign all this in.

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They all tend to work fairly well with P r o g r e s s I v eNHANCEMENT

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There is a ton of cool stuff we can do with all these properties and values now.