csshtml5特效,CSS特效
html5 css3有哪些新特效
html5:
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用于绘画的 canvas 元素
用于媒介回放的 video 和 audio 元素
对本地离线存储的更好的支持
新的特殊内容元素,比如 article、footer、header、nav、section
新的表单控件,比如 calendar、date、time、email、url、search
css3:
1. CSS3实现圆角(border-radius),阴影(box-shadow),
2. 对文字加特效(text-shadow、),线性渐变(gradient),旋转(transform)
3. transform:rotate(9deg) scale(0.85,0.90) translate(0px,-30px) skew(-9deg,0deg);// 旋转,缩放,定位,倾斜
4. 增加了更多的CSS选择器 多背景 rgba
5. 在CSS3中唯一引入的伪元素是 ::selection.
6. 媒体查询,多栏布局
7. border-image
[img]分享几种极具创意的HTML5/CSS3进度条特效
section class="container"
div class="progress"
span style="width: 20%;"span20%/span/span
/div
div class="progress"
span class="green" style="width: 40%;"span40%/span/span
/div
div class="progress"
span class="orange" style="width: 60%;"span60%/span/span
/div
div class="progress"
span class="red" style="width: 80%;"span80%/span/span
/div
div class="progress"
span class="blue" style="width: 100%;"span100%/span/span
/div
/section
从HTML结构中我们可以看出,类名为progress的div是整个进度条的父容器,里面的span则是当前进度,通过width来定义不同的进度值,同时定义不同的颜色类,比如orange,以便待会在CSS中进行样式渲染。
CSS代码:
.progress {
height: 20px;
background: #ebebeb;
border-left: 1px solid transparent;
border-right: 1px solid transparent;
border-radius: 10px;
}
.progress span {
position: relative;
float: left;
margin: 0 -1px;
min-width: 30px;
height: 18px;
line-height: 16px;
text-align: right;
background: #cccccc;
border: 1px solid;
border-color: #bfbfbf #b3b3b3 #9e9e9e;
border-radius: 10px;
background-image: -webkit-linear-gradient(top, #f0f0f0 0%, #dbdbdb 70%, #cccccc 100%);
background-image: -moz-linear-gradient(top, #f0f0f0 0%, #dbdbdb 70%, #cccccc 100%);
background-image: -o-linear-gradient(top, #f0f0f0 0%, #dbdbdb 70%, #cccccc 100%);
background-image: linear-gradient(to bottom, #f0f0f0 0%, #dbdbdb 70%, #cccccc 100%);
-webkit-box-shadow: inset 0 1px rgba(255, 255, 255, 0.3), 0 1px 2px rgba(0, 0, 0, 0.2);
box-shadow: inset 0 1px rgba(255, 255, 255, 0.3), 0 1px 2px rgba(0, 0, 0, 0.2);
}
.progress span span {
padding: 0 8px;
font-size: 11px;
font-weight: bold;
color: #404040;
color: rgba(0, 0, 0, 0.7);
text-shadow: 0 1px rgba(255, 255, 255, 0.4);
}
.progress span:before {
content: '';
position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
z-index: 1;
height: 18px;
background: url("../img/progress.png") 0 0 repeat-x;
border-radius: 10px;
}
.progress .green {
background: #85c440;
border-color: #78b337 #6ba031 #568128;
background-image: -webkit-linear-gradient(top, #b7dc8e 0%, #99ce5f 70%, #85c440 100%);
background-image: -moz-linear-gradient(top, #b7dc8e 0%, #99ce5f 70%, #85c440 100%);
background-image: -o-linear-gradient(top, #b7dc8e 0%, #99ce5f 70%, #85c440 100%);
background-image: linear-gradient(to bottom, #b7dc8e 0%, #99ce5f 70%, #85c440 100%);
}
.progress .red {
background: #db3a27;
border-color: #c73321 #b12d1e #8e2418;
background-image: -webkit-linear-gradient(top, #ea8a7e 0%, #e15a4a 70%, #db3a27 100%);
background-image: -moz-linear-gradient(top, #ea8a7e 0%, #e15a4a 70%, #db3a27 100%);
background-image: -o-linear-gradient(top, #ea8a7e 0%, #e15a4a 70%, #db3a27 100%);
background-image: linear-gradient(to bottom, #ea8a7e 0%, #e15a4a 70%, #db3a27 100%);
}
.progress .orange {
background: #f2b63c;
border-color: #f0ad24 #eba310 #c5880d;
background-image: -webkit-linear-gradient(top, #f8da9c 0%, #f5c462 70%, #f2b63c 100%);
background-image: -moz-linear-gradient(top, #f8da9c 0%, #f5c462 70%, #f2b63c 100%);
background-image: -o-linear-gradient(top, #f8da9c 0%, #f5c462 70%, #f2b63c 100%);
background-image: linear-gradient(to bottom, #f8da9c 0%, #f5c462 70%, #f2b63c 100%);
}
.progress .blue {
background: #5aaadb;
border-color: #459fd6 #3094d2 #277db2;
background-image: -webkit-linear-gradient(top, #aed5ed 0%, #7bbbe2 70%, #5aaadb 100%);
background-image: -moz-linear-gradient(top, #aed5ed 0%, #7bbbe2 70%, #5aaadb 100%);
background-image: -o-linear-gradient(top, #aed5ed 0%, #7bbbe2 70%, #5aaadb 100%);
background-image: linear-gradient(to bottom, #aed5ed 0%, #7bbbe2 70%, #5aaadb 100%);
}
html5怎么使超链接特效消失
html5使超链接特效消失的办法如下
1.新建一个html文件,命名为test.html,用于讲解html5超链接下划线怎么去掉。
2.在test.html文件内,使用a标签创建一个链接,下面将使用css去掉该超链接的下划线。
3.在test.html文件内,给a标签添加一个class属性,属性值为ttlink。
4.在test.html文件内,编写标签,页面的css样式将写在该标签内。
在css标签内,通过class该超链接的样式,将text-decoration属性设置为none,实现去掉链接的下划线。
纯html5+css能写出什么惊人的效果
一、准备工作
进入到 /home/shiyanlou/ 目录下,新建空白文档:
命名为 Baymax.html (其它名字也可以,但后缀名必须是 .html):
使用 gedit 打开,准备编辑代码:
二、编写 HTML
填写以下代码:
!doctype html
html
headmeta charset="utf-8"titleBaymax/title/head
body
div id="baymax"
!-- 定义头部,包括两个眼睛、嘴 --
div id="head"
div id="eye"/div
div id="eye2"/div
div id="mouth"/div
/div
!-- 定义躯干,包括心脏 --
div id="torso"
div id="heart"/div
/div
!-- 定义肚子腹部,包括 cover(和躯干的连接处) --
div id="belly"
div id="cover"/div
/div
!-- 定义左臂,包括一大一小两个手指 --
div id="left-arm"
div id="l-bigfinger"/div
div id="l-smallfinger"/div
/div
!-- 定义右臂,同样包括一大一小两个手指 --
div id="right-arm"
div id="r-bigfinger"/div
div id="r-smallfinger"/div
/div
!-- 定义左腿 --
div id="left-leg"/div
!-- 定义右腿 --
div id="right-leg"/div
/div
/body
html
三、添加 CSS 样式
我们已经使用 HTML 定义好「大白」的各个元素,现在就需要利用到 CSS 来绘制它的样式外表。
由于「大白」是白色的,为了更容易辨识,我们把背景设为深色。
然后首先是头部:
body {
background: #595959;
}
#baymax{
/*设置为 居中*/
margin: 0 auto;
/*高度*/
height: 600px;
/*隐藏溢出*/
overflow: hidden;
}
#head{
height: 64px;
width: 100px;
/*以百分比定义圆角的形状*/
border-radius: 50%;
/*背景*/
background: #fff;
margin: 0 auto;
margin-bottom: -20px;
/*设置下边框的样式*/
border-bottom: 5px solid #e0e0e0;
/*属性设置元素的堆叠顺序; 拥有更高堆叠顺序的元素总是会处于堆叠顺序较低的元素的前面*/
z-index: 100;
/*生成相对定位的元素*/
position: relative;
}
效果预览:
赶紧再来添加眼睛和嘴吧!
#eye,
#eye2{
width: 11px;
height: 13px;
background: #282828;
border-radius: 50%;
position: relative;
top: 30px;
left: 27px;
/*旋转该元素*/
transform: rotate(8deg);
}
#eye2{
/*使其旋转对称*/
transform: rotate(-8deg);
left: 69px; top: 17px;
}
#mouth{
width: 38px;
height: 1.5px;
background: #282828;
position: relative;
left: 34px;
top: 10px;
}
一个 mini 的「大白」,雏形初现:
接下来是躯干和腹部:
#torso,
#belly{
margin: 0 auto;
height: 200px;
width: 180px;
background: #fff;
border-radius: 47%;
/*设置边框*/
border: 5px solid #e0e0e0;
border-top: none;
z-index: 1;
}
#belly{
height: 300px;
width: 245px;
margin-top: -140px;
z-index: 5;
}
#cover{
width: 190px;
background: #fff;
height: 150px;
margin: 0 auto;
position: relative;
top: -20px;
border-radius: 50%;
}
赋予「大白」象征生命的心脏:
#heart{
width:25px;
height:25px;
border-radius:50%;
position:relative;
/*向边框四周添加阴影效果*/
box-shadow:2px 5px 2px #ccc inset;
right:-115px;
top:40px;
z-index:111;
border:1px solid #ccc;
}
现在的「大白」是这个样子的了:
还没有手和脚,怪萌怪萌的...「大白」需要温暖的手臂:
#left-arm,
#right-arm{
height: 270px;
width: 120px;
border-radius: 50%;
background: #fff;
margin: 0 auto;
position: relative;
top: -350px;
left: -100px;
transform: rotate(20deg);
z-index: -1;
}
#right-arm{
transform: rotate(-20deg);
left: 100px;
top: -620px;
}
还没有手指头呢:
#l-bigfinger,
#r-bigfinger{
height: 50px;
width: 20px;
border-radius: 50%;
background: #fff;
position: relative;
top: 250px;
left: 50px;
transform: rotate(-50deg);
}
#r-bigfinger{
left: 50px;
transform: rotate(50deg);
}
#l-smallfinger,
#r-smallfinger{
height: 35px;
width: 15px;
border-radius: 50%;
background: #fff;
position: relative;
top: 195px;
left: 66px;
transform: rotate(-40deg);
}
#r-smallfinger{
background: #fff;
transform: rotate(40deg);
top: 195px;
left: 37px;
}
有点意思了:
迫不及待要给「大白」加上腿了吧:
#left-leg,
#right-leg{
height: 170px;
width: 90px;
border-radius: 40% 30% 10px 45%;
background: #fff;
position: relative;
top: -640px;
left: -45px;
transform: rotate(-1deg);
z-index: -2;
margin: 0 auto;
}
#right-leg{
background: #fff;
border-radius:30% 40% 45% 10px;
margin: 0 auto;
top: -810px;
left: 50px;
transform: rotate(1deg);
}
HTML5动画特效怎么做
主要思想:
首先要准备一张有连续帧的图片,然后利用HTML5 Canvas的draw方法在不同的时间间隔绘制不同的帧,这样看起来就像动画在播放。
关键技术点:
JavaScript 函数setTimeout()有两个参数,第一个是参数可以传递一个JavaScript方法,
另外一个参数代表间隔时间,单位为毫秒数。代码示例:
setTimeout( update, 1000/30);
Canvas的API-drawImage()方法,需要指定全部9个参数:
ctx.drawImage(myImage, offw, offh, width,height, x2, y2, width, height);
其中offw, offh是指源图像的起始坐标点,width, height表示源图像的宽与高,x2,y2表
示源图像在目标Canvas上的起始坐标点。
!DOCTYPE html
html
head
meta http-equiv="X-UA-Compatible" content="chrome=IE8"
meta http-equiv="Content-type" content="text/html;charset=UTF-8"
titleCanvas Mouse Event Demo/title
link href="default.css" rel="stylesheet" /
script
var ctx = null; // global variable 2d context
var started = false;
var mText_canvas = null;
var x = 0, y =0;
var frame = 0; // 22 5*5 + 2
var imageReady = false;
var myImage = null;
var px = 300;
var py = 300;
var x2 = 300;
var y2 = 0;
window.onload = function() {
var canvas = document.getElementById("animation_canvas");
console.log(canvas.parentNode.clientWidth);
canvas.width = canvas.parentNode.clientWidth;
canvas.height = canvas.parentNode.clientHeight;
if (!canvas.getContext) {
console.log("Canvas not supported. Please install a HTML5 compatible browser.");
return;
}
// get 2D context of canvas and draw rectangel
ctx = canvas.getContext("2d");
ctx.fillStyle="black";
ctx.fillRect(0, 0, canvas.width, canvas.height);
myImage = document.createElement('img');
myImage.src = "../robin.png";
myImage.onload = loaded();
}
function loaded() {
imageReady = true;
setTimeout( update, 1000/30);
}
function redraw() {
ctx.clearRect(0, 0, 460, 460)
ctx.fillStyle="black";
ctx.fillRect(0, 0, 460, 460);
// find the index of frames in image
var height = myImage.naturalHeight/5;
var width = myImage.naturalWidth/5;
var row = Math.floor(frame / 5);
var col = frame - row * 5;
var offw = col * width;
var offh = row * height;
// first robin
px = px - 5;
py = py - 5;
if(px -50) {
px = 300;
}
if(py -50) {
py = 300;
}
//var rate = (frame+1) /22;
//var rw = Math.floor(rate * width);
//var rh = Math.floor(rate * height);
ctx.drawImage(myImage, offw, offh, width, height, px, py, width, height);
// second robin
x2 = x2 - 5;
y2 = y2 + 5;
if(x2 -50) {
x2 = 300;
y2 = 0;
}
ctx.drawImage(myImage, offw, offh, width, height, x2, y2, width, height);
}
function update() {
redraw();
frame++;
if (frame = 22) frame = 0;
setTimeout( update, 1000/30);
}
/script
/head
body
h1HTML Canvas Animations Demo - By Gloomy Fish/h1
prePlay Animations/pre
div id="my_painter"
canvas id="animation_canvas"/canvas
/div
/body
/html
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