css3基礎-文本與字體+轉換+過渡+動畫+案例

時間  2020-01-04
標籤 css3 css 基礎 文本 字體 轉換 過渡 動畫 案例 欄目 CSS 简体版
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Css3文本與字體css

 

文本陰影html

h1 {
    text-shadow: 5px 5px 5px red;
}

word-break換行：css3

h1:nth-child(1) { word-break: normal; } /*英文：一行放不下時整個單詞換行*/
h1:nth-child(2) { word-break: break-all; } /*英文：一行放不下時把單詞拆開換行*/
h1:nth-child(3) { word-break: keep-all; } /*英文：與normal相似*/
h1:nth-child(4) { word-break: normal; } /*中文：正常*/
h1:nth-child(5) { word-break: break-all; } /*中文：正常*/
h1:nth-child(6) { word-break: keep-all; } /*中文：標點符號以後換行*/

word-wrap換行(中文無效)：web

h1:nth-child(1) { word-wrap: normal; } /*英文：不換行*/
h1:nth-child(2) { word-wrap: break-word; } /*英文：換行*/

文本溢出時處理：svg

h1:nth-child(1) { text-overflow: clip; } /*隱藏*/
h1:nth-child(2) { text-overflow: ellipsis; }  /*省略號顯示*/
h1:nth-child(3) { text-overflow: '>>'; } /*顯示指定字符：只火狐有效*/

自定義字體函數

.ttf最多見字體，RAW格式，不作優化字體

.otf格式優化

.woff格式，web最佳格式，壓縮版本動畫

.eot格式，IE專用格式ui

.svg

@font-face {
    font-family: 'myfont';
    src: url('font/myFont.eot');
    src: url('font/myFont.eot?#iefix') format('embedded-opentype'),
         url('font/myFont.ttf') format('truetype'),
         url('font/myFont.woff') format('woff'),
         url('font/myFont.svg#myFont') format('svg');
}
h1 {
    font-family: 'myfont';
}

獲取特殊字體格式文件的網址：

https://www.fontsquirrel.com/tools/webfont-generator

 

 

css3轉換

 

2d旋轉transform:rotate(deg)

.pic1 {
    -webkit-transform: rotate(7deg);
       -moz-transform: rotate(7deg);
        -ms-transform: rotate(7deg);
         -o-transform: rotate(7deg);
            transform: rotate(7deg);
}

2d平移transform: translate()

div > img {
    transform: translateX(200px);
}
div > img {
    transform: translateY(200px);
}
div > img {
    transform: translate(200px, 100px);
}

2d縮放transform: scale()

div > img {
    transform: scaleX(.5);
}
div > img {
    transform: scaleY(.5);
}
div > img {
    transform: scale(.5, .5);
}

2d斜切Skew()

div > img {
    transform: skew(15deg, 15deg); /*當只有一個參數的時候，第二個參數默認爲0deg*/
}
div > img {
    transform: skewX(15deg); /*逆時針正，順時針負*/
}
div > img {
    transform: skewY(15deg);
}

3D旋轉

div > img {
    transform: rotateZ(45deg);
}
div > img {
    transform: rotate3d(1, 1, 1, 45deg); /*正：順時針；負：逆時針*/
}

3D平移

div > img {
    transform: translateZ(200px);
}
div > img {
    transform: translate3d(200px, 200px, 200px);
}

3D縮放

div > img {
    transform: scaleZ(.5);
}
div > img {
    transform: scale3d(.5, .5, .5);
}

更改原點位置

div > img {
    transform: rotate3d(1, 1, 1, 45deg);
    transform-origin: left top 0;
}

Matrix_translate

transform: matrix(1, 0, 0, 1, x, y)等同於transform: translate(x, y)

div:nth-child(1) > img {
    transform: matrix(1, 0, 0, 1, 30, 30);
}
div:nth-child(2) > img {
    transform: translate(30px, 30px);
}

Matrix_ scale

transform: matrix(sx, 0, 0, sy, 0, 0)等同於transform: scale(sx, sy)

div:nth-child(1) > img {
    transform: matrix(.5, 0, 0, .5, 0, 0);
}
div:nth-child(2) > img {
    transform: scale(.5, .5);
}

Matrix_ skew

transform: matrix(1, tanθy, tanθx, 1, 0, 0)等同於transform: skew(θxdeg, θydeg)

div:nth-child(1) > img {
    transform: matrix(1, .5774, .5774, 1, 0, 0);
}
div:nth-child(2) > img {
    transform: skew(30deg, 30deg);
}

Matrix_ rotate

transform: matrix(cosθ, sinθ, -sinθ, cosθ, 0, 0)等同於transform: rotate(θdeg)

div:nth-child(1) > img {
    transform: matrix(.7071, .7071, -0.7071, .7071, 0, 0);
}
div:nth-child(2) > img {
    transform: rotate(45deg);
}

Matrix鏡像對稱：

matrix((1-k*k) / (1+k*k), 2k / (1 + k*k), 2k / (1 + k*k), (k*k - 1) / (1+k*k), 0, 0)

若是對稱軸y=-x，即斜率k=-1，代入公式計算：

matrix((1-  -1*-1) / (1+ -1*-1)， 2*-1 / (1 + -1*-1)，2*-1 / (1 + -1*-1)，(-1*-1 - 1) / (1+-1*-1), 0, 0)即獲得matrix((1- 1) / (1+ 1)， -2 / (1 +1)，-2 / (1 + 1)，(1 - 1) / (1+1), 0, 0)=matrix(0，-1，-1，0, 0, 0)

有個可愛的小夥伴作的計算網址：

https://www.zhangxinxu.com/study/201206/css3-transform-matrix-mirror.html

div:nth-child(1) > img {
    transform: matrix3d(.5, 0, 0, 0, 0, .5, 0, 0, 0, 0, .5, 0, 0, 0, 0, 1);
}
div:nth-child(2) > img {
    transform: scale3d(.5, .5, .5);
}

transform-style: preserve-3d;

實現父元素對子元素的3D遮罩效果

Demo：

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>transform style</title>
<style type="text/css">
body { background: #abcdef; }
div { position: relative; width: 760px; height: 760px; margin: auto;
    -webkit-transform-style: preserve-3d;
       -moz-transform-style: preserve-3d;
        -ms-transform-style: preserve-3d;
         -o-transform-style: preserve-3d;
            transform-style: preserve-3d;
}
div > .inner { position: absolute; top: 0; right: 0; bottom: 0; left: 0; width: 100%; height: 100%; margin: auto; transform: rotateY(-45deg); background: url(images/circle_inner.png) no-repeat center center; }
div > .middle { position: absolute; top: 0; right: 0; bottom: 0; left: 0; width: 100%; height: 100%; margin: auto; transform: rotateX(-45deg); background: url(images/circle_middle.png) no-repeat center center; }
div > .outer { position: absolute; top: 0; right: 0; bottom: 0; left: 0; width: 100%; height: 100%; margin: auto; transform: rotateZ(-45deg); background: url(images/circle_outer.png) no-repeat center center; }
div > .imooc { position: absolute; top: 0; right: 0; bottom: 0; left: 0; width: 100%; height: 100%; margin: auto; background: url(images/imooc.png) no-repeat center center; }
</style>
</head>
<body>
<div>
    <div class="inner"></div>
    <div class="middle"></div>
    <div class="outer"></div>
    <div class="imooc"></div>
</div>
</body>
</html>

 

 

 

perspective: 500px;透視距離，perspective屬性指定了觀察者與z=0平面的距離，使具備三維位置變換的元素產生透視效果。z>0的三維元素比正常大，而z<0時則比正常小，大小程度由該屬性的值決定

perspective-origin: bottom;透視點的位置，默認狀況下，消失點位於元素的中心，可是能夠經過設置perspective-origin屬性來改變其位置

div { position: relative; width: 760px; height: 760px; margin: auto;
    -webkit-transform-style: preserve-3d;
       -moz-transform-style: preserve-3d;
        -ms-transform-style: preserve-3d;
         -o-transform-style: preserve-3d;
            transform-style: preserve-3d;
    -webkit-perspective: 500px;
       -moz-perspective: 500px;
        -ms-perspective: 500px;
         -o-perspective: 500px;
            perspective: 500px;
    -webkit-perspective-origin: bottom;
       -moz-perspective-origin: bottom;
        -ms-perspective-origin: bottom;
         -o-perspective-origin: bottom;
            perspective-origin: bottom;
}

元素背面是否可見

backface-visibility: hidden;
backface-visibility: visible;

 

css3過渡

 

transition: transform，若是不指定默認是all

div { width: 800px; height: 800px; margin: auto; transform: rotate(0deg); background: url(images/imooc.png) no-repeat center center, url(images/circle_outer.png) no-repeat center center;
    -webkit-transition: transform 2s ease-in-out 1s;
       -moz-transition: transform 2s ease-in-out 1s;
        -ms-transition: transform 2s ease-in-out 1s;
         -o-transition: transform 2s ease-in-out 1s;
            transition: transform 2s ease-in-out 1s;
}
div:hover { cursor: pointer; transform: rotate(180deg);
    -webkit-transition: transform 2s ease-in-out 1s;
       -moz-transition: transform 2s ease-in-out 1s;
        -ms-transition: transform 2s ease-in-out 1s;
         -o-transition: transform 2s ease-in-out 1s;
            transition: transform 2s ease-in-out 1s;
}

transition-timing-function：

#div1 {transition-timing-function: linear;} /*線性*/
#div2 {transition-timing-function: ease;} /*平滑*/
#div3 {transition-timing-function: ease-in;} /*慢入*/
#div4 {transition-timing-function: ease-out;} /*慢出*/
#div5 {transition-timing-function: ease-in-out;} /*慢入慢出*/

簡寫：屬性+動畫時間+運動函數+延遲時間

transition: transform 2s ease-in-out 1s;

當鼠標通過一個元素的時候，該元素翻轉360°而且放大一倍顯示

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>demo</title>
    <style>
        div {
            font-size: 14px;
            font-weight: bold;
            line-height: 50px;
            position: fixed;
            top: 0;
            right: 0;
            bottom: 0;
            left: 0;
            width: 200px;
            height: 50px;
            margin: auto;
            cursor: pointer;
            text-align: center;
            background: #abcdef;
            /*此處寫代碼*/
            -webkit-transform:rotate(0deg) scale(1);
            -webkit-transition:transform 1s;
           
        }
        /*此處寫代碼*/
       div:hover{
           -webkit-transform:rotate(360deg) scale(2);
           -webkit-transition:transform 1s;
       }
    </style>
</head>
<body>
    <div>www.test.com</div>
</html>

 

 

 

 

Css3動畫

 

animation-delay 屬性定義動畫何時開始，單位能夠是秒（s）或毫秒（ms），容許負值，-2s使動畫立刻開始，但會跳過2s進入動畫

animation-iteration-count: infinite;無限循環/具體的數值

 

旋轉太極：

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>demo</title>
    <style type="text/css">
        div {
            position: absolute;
            top: 0;
            right: 0;
            bottom: 0;
            left: 0;
            box-sizing: border-box;
            width: 400px;
            height: 400px;
            margin: auto;
            border: 1px solid red;
            border-bottom: 200px solid red;
            border-radius: 50%;
            transform-origin: 50% 50%;
            animation-name: rotate;
            animation-duration: 5s;
            animation-timing-function: linear;
            animation:rotate 5s linear infinite;
        }
        div::before{
            content:" ";
            width:60px;
            height:60px;
            border-radius:50%;
            position: absolute;
            top:100px;
            left:0;
            background-color: red;
            border: 70px solid white;
        }
        div::after{
            content:" ";
            width:60px;
            height:60px;
            border-radius:50%;
            position: absolute;
            top:100px;
            right:0;
            background-color: white;
            border: 70px solid red;
        }
        @keyframes rotate{
            from{transform:rotate(0deg);}
            to{transform:rotate(360deg);}
        }
    </style>
</head>
<body>
    <div></div>
</body>
</html>

animation-direction與循環搭配，若是動畫被設置爲只播放一次，該屬性將不起做用：

animation-direction: normal; /*正常*/
animation-direction: reverse; /*反向*/
animation-direction: alternate; /*先正向再反向*/
animation-direction: alternate-reverse; /*先反向再正向*/

動畫暫停或未播放時的樣式

animation-fill-mode: none; /*默認*/
animation-fill-mode: forwards; /*動畫結束時的狀態*/
animation-fill-mode: backwords; /*動畫開始時的狀態*/
animation-fill-mode: both; /*動畫開始或結束的狀態*/
animation-play-state: paused; /*動畫暫停*/
animation-play-state: running; /*動畫正在運行*/

鼠標懸停時暫停：

div {
    cursor: pointer;
    -webkit-animation-play-state: running;
            animation-play-state: running;
}
div:hover {
    cursor: pointer;
    -webkit-animation-play-state: paused;
            animation-play-state: paused;
}

Animation簡寫：

Animation:name duration timing-function delay iteration-count direction fill-mode play-state;

滾屏網頁都有一個提示滾屏箭頭動畫效果

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>2-9</title>
    <style type="text/css">
        div {
            font-family: Arial;
            font-size: 72px;
            font-weight: bold;
            position: fixed;
            right: 0;
            left: 0;
            width: 30px;
            height: 30px;
            margin: auto;
            transform: rotate(90deg);
            cursor:pointer;
            animation:my_move .5s ease-in-out .5s infinite alternate ;
        }
        @keyframes my_move{
            from{bottom:200px;}
            to{bottom:100px;}
        }
    </style>
</head>
<body>
    <div>&gt;</div>
</body>
</html>

定義元素忽明忽暗的閃爍效果

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