Css transition ease in and out

transition

Transitions enable you to define the transition between two states of an element. Different states may be defined using pseudo-classes like :hover or :active or dynamically set using JavaScript.

Constituent properties

This property is a shorthand for the following CSS properties:

Syntax

/* Apply to 1 property */ /* property name | duration */ transition: margin-right 4s; /* property name | duration | delay */ transition: margin-right 4s 1s; /* property name | duration | easing function */ transition: margin-right 4s ease-in-out; /* property name | duration | easing function | delay */ transition: margin-right 4s ease-in-out 1s; /* Apply to 2 properties */ transition: margin-right 4s, color 1s; /* Apply to all changed properties */ transition: all 0.5s ease-out; /* Global values */ transition: inherit; transition: initial; transition: revert; transition: revert-layer; transition: unset; 

The transition property is specified as one or more single-property transitions, separated by commas.

Each single-property transition describes the transition that should be applied to a single property (or the special values all and none ). It includes:

• zero or one value representing the property to which the transition should apply. This may be any one of:
  • the keyword none
  • the keyword all
  • a naming a CSS property.

  See how things are handled when lists of property values aren’t the same length. In short, extra transition descriptions beyond the number of properties actually being animated are ignored.

  Formal definition

  • transition-delay : 0s
  • transition-duration : 0s
  • transition-property : all
  • transition-timing-function : ease
  • transition-delay : as specified
  • transition-duration : as specified
  • transition-property : as specified
  • transition-timing-function : as specified

  Formal syntax

  transition =
  #

  =
  [ none | ] ||
  ||
  ||

  =
  all |

  =
  linear |
  |
  |
  

  =
  linear( )

  =
  ease |
  ease-in |
  ease-out |
  ease-in-out |
  cubic-bezier( , , , )

  =
  step-start |
  step-end |
  steps( [, ]? )

  =
  [ ]#

  =
  jump-start |
  jump-end |
  jump-none |
  jump-both |
  start |
  end

  =
  &&
  ?

  =

  Examples

  Simple example

  In this example, when the user hovers over the element, there is a one-second delay before the four-second font-size transition occurs.

  HTML

  a class="target">Hover over mea> 

  CSS

  .target  font-size: 14px; transition: font-size 4s 1s; > .target:hover  font-size: 36px; > 

  There are several more examples of CSS transitions included in the Using CSS transitions article.

  Specifications

  Browser compatibility

  BCD tables only load in the browser

  See also

  Found a content problem with this page?

  This page was last modified on Jul 18, 2023 by MDN contributors.

  Your blueprint for a better internet.

  MDN

  Support

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  Developers

  Visit Mozilla Corporation’s not-for-profit parent, the Mozilla Foundation.
  Portions of this content are ©1998– 2023 by individual mozilla.org contributors. Content available under a Creative Commons license.

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  transition-timing-function

  The transition-timing-function CSS property sets how intermediate values are calculated for CSS properties being affected by a transition effect.

  Try it

  This, in essence, lets you establish an acceleration curve so that the speed of the transition can vary over its duration.

  This acceleration curve is defined using one for each property to be transitioned.

  You may specify multiple easing functions; each one will be applied to the corresponding property as specified by the transition-property property, which acts as a transition-property list. If there are fewer easing functions specified than in the transition-property list, the user agent must calculate which value is used by repeating the list of values until there is one for each transition property. If there are more easing functions, the list is truncated to the right size. In both cases, the CSS declaration stays valid.

  Syntax

  /* Keyword values */ transition-timing-function: ease; transition-timing-function: ease-in; transition-timing-function: ease-out; transition-timing-function: ease-in-out; transition-timing-function: linear; transition-timing-function: step-start; transition-timing-function: step-end; /* Function values */ transition-timing-function: steps(4, jump-end); transition-timing-function: cubic-bezier(0.1, 0.7, 1, 0.1); /* Steps Function keywords */ transition-timing-function: steps(4, jump-start); transition-timing-function: steps(10, jump-end); transition-timing-function: steps(20, jump-none); transition-timing-function: steps(5, jump-both); transition-timing-function: steps(6, start); transition-timing-function: steps(8, end); /* Multiple easing functions */ transition-timing-function: ease, step-start, cubic-bezier(0.1, 0.7, 1, 0.1); /* Global values */ transition-timing-function: inherit; transition-timing-function: initial; transition-timing-function: revert; transition-timing-function: revert-layer; transition-timing-function: unset; 

  Values

  The non-step keyword values (ease, linear, ease-in-out, etc.) each represent cubic Bézier curve with fixed four point values, with the cubic-bezier() function value allowing for a non-predefined value. The step easing functions divides the input time into a specified number of intervals that are equal in length. It is defined by a number of steps and a step position.

  Equal to cubic-bezier(0.25, 0.1, 0.25, 1.0) , the default value, increases in velocity towards the middle of the transition, slowing back down at the end.

  Equal to cubic-bezier(0.0, 0.0, 1.0, 1.0) , transitions at an even speed.

  Equal to cubic-bezier(0.42, 0, 1.0, 1.0) , starts off slowly, with the transition speed increasing until complete.

  Equal to cubic-bezier(0, 0, 0.58, 1.0) , starts transitioning quickly, slowing down as the transition continues.

  Equal to cubic-bezier(0.42, 0, 0.58, 1.0) , starts transitioning slowly, speeds up, and then slows down again.

  An author-defined cubic-Bezier curve, where the p1 and p3 values must be in the range of 0 to 1.

  Displays the transition along n stops along the transition, displaying each stop for equal lengths of time. For example, if n is 5, there are 5 steps. Whether the transition holds temporarily at 0%, 20%, 40%, 60% and 80%, on the 20%, 40%, 60%, 80% and 100%, or makes 5 stops between the 0% and 100% along the transition, or makes 5 stops including the 0% and 100% marks (on the 0%, 25%, 50%, 75%, and 100%) depends on which of the following jump terms is used:

  Denotes a left-continuous function, so that the first jump happens when the transition begins;

  Denotes a right-continuous function, so that the last jump happens when the animation ends;

  There is no jump on either end. Instead, holding at both the 0% mark and the 100% mark, each for 1/n of the duration

  Includes pauses at both the 0% and 100% marks, effectively adding a step during the transition time.

  Equal to steps(1, jump-start)

  Accessibility concerns

  Some animations can be helpful such as to guide users to understand what actions are expected, to show relationships within the user interface, and to inform users as to what actions have occurred. Animations can help reduce cognitive load, prevent change blindness, and establish better recall in spatial relationships. However, some animations can be problematic for people with cognitive concerns such as Attention Deficit Hyperactivity Disorder (ADHD) and certain kinds of motion can be a trigger for Vestibular disorders, epilepsy, and migraine and Scotopic sensitivity.

  Consider providing a mechanism for pausing or disabling animation, as well as using the Reduced Motion Media Query to create a complimentary experience for users who have expressed a preference for no animated experiences.

  Formal definition

  Formal syntax

  transition-timing-function =
  #

  =
  linear |
  |
  |
  

  =
  linear( )

  =
  ease |
  ease-in |
  ease-out |
  ease-in-out |
  cubic-bezier( , , , )

  =
  step-start |
  step-end |
  steps( [, ]? )

  =
  [ ]#

  =
  jump-start |
  jump-end |
  jump-none |
  jump-both |
  start |
  end

  =
  &&
  ?

  =

  Examples

  Cubic-Bezier examples

  div class="parent"> div class="ease">easediv> div class="easein">ease-indiv> div class="easeout">ease-outdiv> div class="easeinout">ease-in-outdiv> div class="linear">lineardiv> div class="cb">cubic-bezier(0.2,-2,0.8,2)div> div> 

  .parent  > .parent > div[class]  width: 12em; min-width: 12em; margin-bottom: 4px; background-color: black; border: 1px solid red; color: white; transition-property: all; transition-duration: 7s; > .parent > div.box1  width: 90vw; min-width: 24em; background-color: magenta; color: yellow; border: 1px solid orange; transition-property: all; transition-duration: 2s; > 

  function updateTransition()  const els = document.querySelectorAll(".parent > div[class]"); for (let i = 0; i  els.length; i++)  els[i].classList.toggle("box1"); > > const intervalID = setInterval(updateTransition, 10000); 

  .ease  transition-timing-function: ease; > .easein  transition-timing-function: ease-in; > .easeout  transition-timing-function: ease-out; > .easeinout  transition-timing-function: ease-in-out; > .linear  transition-timing-function: linear; > .cb  transition-timing-function: cubic-bezier(0.2, -2, 0.8, 2); > 

  Step examples

  div class="parent"> div class="jump-start">jump-startdiv> div class="jump-end">jump-enddiv> div class="jump-both">jump-bothdiv> div class="jump-none">jump-nonediv> div class="step-start">step-startdiv> div class="step-end">step-enddiv> div> 

  .parent  > .parent > div[class]  width: 12em; min-width: 12em; margin-bottom: 4px; background-color: black; border: 1px solid red; color: white; transition-property: all; transition-duration: 7s; > .parent > div.box1  width: 90vw; min-width: 24em; background-color: magenta; color: yellow; border: 1px solid orange; transition-property: all; transition-duration: 2s; > 

  function updateTransition()  const els = document.querySelectorAll(".parent > div[class]"); for (let i = 0; i  els.length; i++)  els[i].classList.toggle("box1"); > > const intervalID = setInterval(updateTransition, 10000); 

  .jump-start  transition-timing-function: steps(5, jump-start); > .jump-end  transition-timing-function: steps(5, jump-end); > .jump-none  transition-timing-function: steps(5, jump-none); > .jump-both  transition-timing-function: steps(5, jump-both); > .step-start  transition-timing-function: step-start; > .step-end  transition-timing-function: step-end; > 

  Specifications

  Browser compatibility

  BCD tables only load in the browser

  See also

  Found a content problem with this page?

  This page was last modified on Jul 18, 2023 by MDN contributors.

  Your blueprint for a better internet.

  MDN

  Support

  Our communities

  Developers

  Visit Mozilla Corporation’s not-for-profit parent, the Mozilla Foundation.
  Portions of this content are ©1998– 2023 by individual mozilla.org contributors. Content available under a Creative Commons license.

  Источник

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