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                [TOC] #### transition過渡效果 過渡效果: ? 過渡效果允許css的屬性值在一定的時間區間內平滑地過渡。這種效果可以在鼠標單擊、 獲得焦點或對元素任何改變中觸發,并圓滑地以動畫效果改變CSS的屬性值 transition簡寫形式: ? transition: transition-property transition-duration transition-timing-function transition-delay transition-property: ? 指定應用過渡的屬性,值為:none(沒有屬性改變);all(所有屬性改變)這 個也是其默認值;indent(元素屬性名)。 transition-duration: ? 指定元素 轉換過程的持續時間,單位為s(秒)或者ms(毫秒) transition-delay: ? 指定動畫開始執行前的延遲時間,單位為s(秒)或者ms(毫秒) #### transition過渡動畫 transition-timing-function: ? transition-timing-function的值允許你根據時間的推進去改變屬性值的變換速率, transition-timing-function有6個可能值: ? ease:(逐漸變慢)默認值,等同于貝塞爾曲線(0.25, 0.1, 0.25, 1.0) ? linear:(勻速) ? ease-in:(加速) ? ease-out:(減速) ? ease-in-out:(加速然后減速) #### transform過渡效果配置 transform:變形效果 語法:transform: rotate | scale | skew | translate 說明: rotate(<angle>) :指定一個2D旋轉,正數順時針,負數逆時針旋轉 translate(x,y):設置移動效果 scale(number,number):縮放效果 skew(angle,angle) 扭曲效果 skew(30deg,60deg) transform-origin:設置旋轉元素的基點位置 語法:transform-origin: 20% 40%; <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title></title> <style type="text/css"> #box{ width: 300px; height: 200px; background: dodgerblue; /*transition用來監控屬性的變化,如果被監控的屬性發生變化,那么就是通過運動,運動過去*/ /*transition: width 2s;*/ transition: all 2s; } </style> </head> <body> <input type="button" value="寬度變化" id="btn" /> <br /><br /> <div id="box"></div> <script type="text/javascript"> var btn = document.getElementById("btn"); var box = document.getElementById("box"); btn.onclick = function(){ box.style.width = '1000px'; box.style.height = '600px'; box.style.background = 'orangered'; } </script> </body> </html> #### 旋轉基準點設置 transform-origin:設置旋轉元素的基點位置 <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title></title> <style> *{ padding: 0; margin: 0; } body{ background: #666; } #hd{ width: 550px; height: 550px; position: relative; background: url(biaopan.png) no-repeat; background-size: 100% 100%; margin: 50px auto; } #hd img{ position: absolute; left: 266px; top: 233px; width: 16px; animation: z 60s linear infinite; transform-origin: 8px 41px; } @keyframes z{ from{ transform: rotate(0); } to{ transform: rotate(360deg); } } </style> </head> <body> <div id="hd"> <img src="zhizhen.png" alt="" /> </div> </body> </html>
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