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'; }
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 { transform: translatez(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-k*k) / (1+k*k), 2k / (1 + k*k), 2k / (1 + k*k), (k*k - 1) / (1+k*k), 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)
有个可爱的小伙伴做的计算网址:
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:
<!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>></div> </body> </html>
定义元素忽明忽暗的闪烁效果
上一篇: 谈谈surging引擎的tcp、http、ws协议和如何容器化部署
下一篇: 婴儿守则