transition

transition CSS 屬性是 transition-property, transition-duration, transition-timing-function, and transition-delay的 特性簡寫。

The source for this interactive example is stored in a GitHub repository. If you'd like to contribute to the interactive examples project, please clone https://github.com/mdn/interactive-examples and send us a pull request.

Transitions 讓你可以定義元件在兩個狀態之間切換的轉場效果。兩個不同狀態可以使用虛擬類別 定義，像是:hover 或 :active 亦或是 使用JavaScript設定的狀態變化。

/* Apply to 1 property */
/* property name | duration */
transition: margin-right 4s;

/* property name | duration | delay */
transition: margin-right 4s 1s;

/* property name | duration | timing function */
transition: margin-right 4s ease-in-out;

/* property name | duration | timing 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: unset;

transition 屬性可以包含一個或多個轉場設定，每一項設定都以逗點分開。

每一項設定都描述著每一項屬性所對應的轉場效果(或是all 及 none這兩個特殊值) 。其包含了：

• 無或一個對應的屬性名稱。可以是：
  • 關鍵字 none
  • 關鍵字 all
  • 以<custom-ident>命名的CSS屬性。
• 無或一個<single-transition-timing-function> 表示所使用的漸變函式。
• 無、一個或兩個<time> 值。第一個值會被指派給transition-duration, 而第二個則被指派給transition-delay。

當每個轉場設定不等長時，請參見 當property values list 之間不等長時... 。簡而言之，多餘的描述(超過實際被執行的數量)會直接被忽略。

<single-transition>#
where 
<single-transition> = [ none | <single-transition-property> ] || <time> || <timing-function> || <time>
where 
<single-transition-property> = all | <custom-ident>
<timing-function> = linear | <cubic-bezier-timing-function> | <step-timing-function>
where 
<cubic-bezier-timing-function> = ease | ease-in | ease-out | ease-in-out | cubic-bezier(<number <a href="/zh-TW/docs/CSS/Value_definition_syntax#Brackets" title="Brackets: enclose several entities, combinators, and multipliers to transform them as a single component">[0,1]>, <number>, <number <a href="/zh-TW/docs/CSS/Value_definition_syntax#Brackets" title="Brackets: enclose several entities, combinators, and multipliers to transform them as a single component">[0,1]>, <number>)
<step-timing-function> = step-start | step-end | steps(<integer>[, <step-position>]?)
where 
<step-position> = jump-start | jump-end | jump-none | jump-both | start | end

CSS 轉場 有更多範例。

• CSS轉場
• TransitionEvent