transition-timing-function

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2015.

transition-timing-function CSS 屬性用於表示各個被動畫特效影響的屬性的區間值計算方式。

嘗試一下

本質上,這個屬性讓你使用加速度曲線來表示動畫變換的速度。

而每個可以動畫化的屬性使用一個 <timing-function> 作為加速度曲線。

你也許有許多時間函數,而你可以透過使用 transition-property 屬性來個別設置。如果有前述清單的數量超過時間函數的數量,則會使用預設值 ease;如果少於那多餘的時間函數會被忽略,在這兩種情況,CSS 宣告總會有效。

語法

css
/* Keyword */
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;

/* 函數 */
transition-timing-function: steps(4, end);
transition-timing-function: cubic-bezier(0.1, 0.7, 1, 0.1);
transition-timing-function: frames(10);

/* 多個函數 */
transition-timing-function: ease, step-start, cubic-bezier(0.1, 0.7, 1, 0.1);

/* 全域值 */
transition-timing-function: inherit;
transition-timing-function: initial;
transition-timing-function: unset;

/* 包含 transition-property */
transition-property: width, height;
transition-timing-function: ease-in, ease-out; // ease-in to width and ease-out to height

<timing-function>

每個 <timing-function> 連結到對應的動畫化屬性,請參考 transition-property

公式語法

transition-timing-function = 
<easing-function>#

<easing-function> =
<linear-easing-function> |
<cubic-bezier-easing-function> |
<step-easing-function>

<linear-easing-function> =
linear |
<linear()>

<cubic-bezier-easing-function> =
ease |
ease-in |
ease-out |
ease-in-out |
<cubic-bezier()>

<step-easing-function> =
step-start |
step-end |
<steps()>

<linear()> =
linear( [ <number> && <percentage>{0,2} ]# )

<cubic-bezier()> =
cubic-bezier( [ <number [0,1]> , <number> ]#{2} )

<steps()> =
steps( <integer> , <step-position>? )

<step-position> =
jump-start |
jump-end |
jump-none |
jump-both |
start |
end

範例

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

transition-timing-function: steps(4, end)

規格

Specification
CSS Transitions
# transition-timing-function-property
預設值ease
Applies toall elements, ::before and ::after pseudo-elements
繼承與否no
Computed valueas specified
Animation typeNot animatable

相容性

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
transition-timing-function
jump- keywords for steps()

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Full support
Full support
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