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web前端入门到实战:css3基础-文本与字体+转换+过渡+动画+案例

Css3文本与字体

文本阴影

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

word-break换行:

h1:nth-child(1) { word-break: normal; } /*英文:一行放不下时整个单词换行*/
h1:nth-child(2) { word-break: break-all; } /*英文:一行放不下时把单词拆开换行*/
h1:nth-child(3) { word-break: keep-all; } /*英文:与normal类似*/
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:标点符号之后换行*/

word-wrap换行(中文无效):

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

文本溢出时处理:

h1:nth-child(1) { text-overflow: clip; } /*隐藏*/
h1:nth-child(2) { text-overflow: ellipsis; }  /*省略号显示*/
h1:nth-child(3) { text-overflow: '>>'; } /*显示指定字符:只火狐有效*/

自定义字体

.ttf最常见字体,RAW格式,不做优化

.otf格式

.woff格式,web最佳格式,压缩版本

.eot格式,IE专用格式

.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';
}
专门建立的学习Q-q-u-n: 784783012 ,分享学习的方法和需要注意的小细节,不停更新最新的教程和学习技巧
(从零基础开始到前端项目实战教程,学习工具,全栈开发学习路线以及规划)

获取特殊字体格式文件的网址:


css3****转换

2d旋转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缩放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); /*当只有一个参数的时候,第二个参数默认为0deg*/
}
div > img {
    transform: skewX(15deg); /*逆时针正,顺时针负*/
}
div > img {
    transform: skewY(15deg);
}

3D旋转

div > img {
    transform: rotateZ(45deg);
}
div > img {
    transform: rotate3d(1, 1, 1, 45deg); /*正:顺时针;负:逆时针*/
}

3D平移

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

3D缩放

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

更改原点位置

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

Matrix_translate

transform: matrix(1, 0, 0, 1, x, y)等同于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)等同于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)等同于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)等同于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镜像对称:

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

如果对称轴y=-x,即斜率k=-1,代入公式计算:

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)即得到matrix((1- 1) / (1+ 1), -2 / (1 +1),-2 / (1 + 1),(1 - 1) / (1+1), 0, 0)=matrix(0,-1,-1,0, 0, 0)

专门建立的学习Q-q-u-n: 784783012 ,分享学习的方法和需要注意的小细节,不停更新最新的教程和学习技巧
(从零基础开始到前端项目实战教程,学习工具,全栈开发学习路线以及规划)
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;

实现父元素对子元素的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;透视距离,perspective属性指定了观察者与z=0平面的距离,使具有三维位置变换的元素产生透视效果。z>0的三维元素比正常大,而z<0时则比正常小,大小程度由该属性的值决定

perspective-origin: bottom;透视点的位置,默认情况下,消失点位于元素的中心,但是可以通过设置perspective-origin属性来改变其位置

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;
}

元素背面是否可见

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


css3****过渡

transition: transform,如果不指定默认是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;} /*线性*/
#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*/

简写:属性+动画时间+运动函数+延迟时间

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

当鼠标经过一个元素的时候,该元素翻转360°并且放大一倍显示

<!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;
            /*此处写代码*/ -webkit-transform:rotate(0deg) scale(1); -webkit-transition:transform 1s;

        }
        /*此处写代码*/ div:hover{ -webkit-transform:rotate(360deg) scale(2); -webkit-transition:transform 1s;
       }
    </style>
</head>
<body>
    <div>www.test.com</div>
</html>


Css3****动画

animation-delay 属性定义动画什么时候开始,单位可以是秒(s)或毫秒(ms),允许负值,-2s使动画马上开始,但会跳过2s进入动画

animation-iteration-count: infinite;无限循环/具体的数值

旋转太极:

专门建立的学习Q-q-u-n: 784783012 ,分享学习的方法和需要注意的小细节,不停更新最新的教程和学习技巧
(从零基础开始到前端项目实战教程,学习工具,全栈开发学习路线以及规划)
<!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与循环搭配,如果动画被设置为只播放一次,该属性将不起作用:

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*/

动画暂停或未播放时的样式

animation-fill-mode: none; /*默认*/
animation-fill-mode: forwards; /*动画结束时的状态*/
animation-fill-mode: backwords; /*动画开始时的状态*/
animation-fill-mode: both; /*动画开始或结束的状态*/

animation-play-state: paused; /*动画暂停*/
animation-play-state: running; /*动画正在运行*/

鼠标悬停时暂停:

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简写:

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

滚屏网页都有一个提示滚屏箭头动画效果

<!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>

定义元素忽明忽暗的闪烁效果

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