A Tale of Four Properties

Chris Coyier

October 02, 2017

Tweet Share

Transcript

1. A Tale of Four Properties That are kinda related to

   shapes in CSS Chris Coyier @chriscoyier // CodePen • CSS-Tricks • ShopTalk

2. `

3. LET'S JUST SAY

4. YOU REALLY LIKE REALLY

5. THEY MIGHT BE GIANTS

6. None
7. None
8. None

9. YOU REALLY ONLY HAVE One Choice

10. FAN SITE!!!!

11. LYRICS ANDANDAND OMGSTUFFFFF What goes on a fan site?

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

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

14. <!DOCTYPE whatever blah blah blah> <h1>Particle Man</h1> <p>Particle man, particle

    man<br> Doing the things a particle can<br> What's he like? It's not important<br> Particle man</p> <p>Is he a dot, or is he a speck?<br> When he's underwater does he get wet?<br> Or does the water get him instead?<br> Nobody knows, Particle man</p> <p>Triangle man, Triangle man<br> Triangle man hates particle man<br> They have a fight, Triangle wins<br> Triangle man</p> <p>Universe man, Universe man<br> Size of the entire universe man<br> Usually kind to smaller man<br> Universe man</p>

15. <!DOCTYPE whatever blah blah blah> <h1>Particle Man</h1> <p>Particle man, particle

    man<br> Doing the things a particle can<br> What's he like? It's not important<br> Particle man</p> <p>Is he a dot, or is he a speck?<br> When he's underwater does he get wet?<br> Or does the water get him instead?<br> Nobody knows, Particle man</p> <p>Triangle man, Triangle man<br> Triangle man hates particle man<br> They have a fight, Triangle wins<br> Triangle man</p> <p>Universe man, Universe man<br> Size of the entire universe man<br> Usually kind to smaller man<br> Universe man</p>

16. I AM GONNA NEED THAT TEXT IDEA TIME TO BE

    ALL SLANTED UP. LIKE TRIANGLE MAN!!!!

17. I AM GONNA NEED THA IDEA TIME TO BE ALL

    SLANTED LIKE TRIANGLE

18. <h1>Particle Man</h1> <pre> 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.
19. None

20. ELEMENT THAT IS FLOATED

21. 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.)

22. .shape { float: left; width: 200px; height: 200px; } ELEMENT

    THAT IS FLOATED

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

    height: 200px; shape-outside }

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

    height: 200px; shape-outside: polygon( ); }

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

    height: 200px; shape-outside: polygon( 100px 0, 200px 200px, 0 200px ); }

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

    height: 200px; shape-outside: polygon( 100px 0, 200px 200px, 0 200px ); }

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

28. None

29. You can even ANIMATE it.

30. None

31. .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

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

33. NOW LET'S DO UNIVERSE MAN

34. UNIVERSE MAN HE's GONNA BUTT IN AND SMASH HIS BELLY

    ALL UP IN THIS TEXT!!!!

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

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

    polygon().

37. .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

38. floated thing

39. None
40. None
41. None
42. None

43. 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

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

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

46. None
47. None

48. MAYBE PERSON MAN?

49. None

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

51. PERSON MAN?

52. polygon() circle() ellipse() inset() path() url() shape-outside ❌ This is

    all assuming we're in a browser that supports shape-outside at all!

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

    points...

54. Let's just put a pin in that.

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

56. WITH PARTICLE MAN OMGG!!!! HE NEEDS TO BE FLYING ALL

    AROUND THIS SUCKAAAA LIKE A PARTICLE WOULD!!!!
57. None

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

    action!!!!

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

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

61. .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: ; }

62. .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 }

63. PATHS ARE AWESOME they can draw anything!!!! All other drawing

    is syntactic sugar!!!!

64. Path comes from SVG land. <path d=" ... ">

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

66. None
67. None
68. None

69. <div id="particle-man"></div> #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
70. None
71. None
72. None

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

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

75. 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.

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

    ❌ ❌ ❌ ❌

77. There is actually tasteful, nice stuff you can do with

    offset-path()
78. None
79. None
80. None

81. WE GONNA NEED SOME SURPRISING REVEALS! IDEA TIME

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

83. None
84. None

85. You can clip elements! With clip-path!

86. Remember how with shape-outside we could use shapes like polygon()

    and circle()? Those work with clip-path too! The old name was clip.

87. Here's another one: inset()

88. clip-path: inset( 0 /* top */ 20px /* right */

    20px /* bottom */ 280px /* left */ );

89. .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); } }
90. None

91. There is actually tasteful, nice stuff you can do with

    clip-path()
92. None

93. 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

94. 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

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

96. 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%); }

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

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

99. None

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

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

     ❌ ❌ ❌ ❌ clip-path ❌ ✂

102. 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.)
103. None
104. None

105. SO. SPEAKING OF SVG.

106. SO. SPEAKING OF SVG.

107. SO. SPEAKING OF SVG.

108. SVG doesn't have wrapped text or floats, so shape-outside isn't

     really relevant. SVG has clipping and masking covered with <clipPath> and <mask>. SVG has <animateMotion> for animating along a path. But it's part of SMIL.

109. 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.
110. None
111. None
112. None

113. WHERE WAS I

114. <svg> <path d="M 200 200 v 20 h -20" />

     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 */ } <polygon points="0,0 20,0 20,20 0,20" /> <circle cx="50" cy="50" r="10" /> <ellipse cx="60" cy="60" rx="50" ry="25" /> <rect x="120" y="120" width="12" height="12" /> </svg>

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

     ❌ ❌ clip-path ❌ <clipPath> d ~ ~ ~ ~ ~

116. GOSH IT WOULD BE NICE

117. 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 <polygon> could use polygon() WOULD BE NICE

118. BUT ANYWAY

119. Word on the street is the CSS folks have a

     desire to reign all this in.

120. They all tend to work fairly well with P r

     o g r e s s I v eNHANCEMENT

121. There is a ton of cool stuff we can do

     with all these properties and values now.
122. None

123. THANKS Chris Coyier @chriscoyier // CodePen • CSS-Tricks • ShopTalk