html动态背景特效代码(css动态背景代码)
html怎么实现网页背景色渐变动态选择?
可以用两个取色器去分部选择两个颜色,然后使用css3渐变背景色去设置网页背景。
渐变背景色可以设置线性、径向和起止颜色、方向等。
求HTML动态图片代码
div id="demo" style="overflow:hidden;width:670px;color:#ffffff;"
table cellpadding="0" cellspacing="0" border="0"
trtd id="demo1" valign="top" align="center"
table cellpadding="2" cellspacing="0" border="0"
tr align="center"
tdimg src="" width="88"/td
tdimg src="" width="88"/td
tdimg src="" width="88"/td
tdimg src="" width="88"/td
tdimg src="" width="88"/td
/tr
/table
/td
td id="demo2" valign="top"/td
/tr
/table
/div
script
var speed=1//速度数值越大速度越慢
demo2.innerHTML=demo1.innerHTML
function Marquee(){
if(demo2.offsetWidth-demo.scrollLeft=0)
demo.scrollLeft-=demo1.offsetWidth
else{
demo.scrollLeft++
}
}
var MyMar=setInterval(Marquee,speed)
demo.onmouseover=function() {clearInterval(MyMar)}
demo.onmouseout=function() {MyMar=setInterval(Marquee,speed)}
/script
我的这段代码不会出现跑一段就停下的现象
DIV align=center
DIV id=scroll_div
style="OVERFLOW: hidden; WIDTH: 778px;"
align=center
TABLE border="0" cellpadding="0" cellspacing="0"
TBODY
TR
TD id=scroll_begin
A href="#"IMG src="" border=0/AA href="#"IMG src="" border=0/AA href="#"IMG src="" border=0/AA href="#"IMG src="" border=0/AA href="#"IMG src="" border=0/AA href="#"IMG src="" border=0/AA href="#"IMG src="" border=0/AA href="#"IMG src="" border=0/A/TD
TD id=scroll_end
/TR/TBODY/TABLE
/DIV/DIV
SCRIPT
var speed=30
var scroll_end = document.getElementById("scroll_end");
var scroll_div = document.getElementById("scroll_div");
scroll_end.innerHTML=scroll_begin.innerHTML
function Marquee(){
if(scroll_end.offsetWidth-scroll_div.scrollLeft=0)
scroll_div.scrollLeft-=scroll_begin.offsetWidth
else{
scroll_div.scrollLeft++
}
}
var MyMar=setInterval(Marquee,speed)
scroll_div.onmouseover=function() {clearInterval(MyMar)}
scroll_div.onmouseout=function() {MyMar=setInterval(Marquee,speed)}
/SCRIPT
HTML怎么用动态图片做背景
你好,方式有很多哦,随便列举3种方式:
使用本身就是动态变化的(gif)作背景。但是gif图不仅要求图片长宽大,而且清晰度也要高。
使用几张图片,用javascript每隔一段时间刷新背景图片的url地址为每一张图片。
使用HTML5 动画技术。
html+css 动态渐变背景
先给背景设置了渐变颜色并且旋转一定角度,实现斜着的渐变效果。
接下来把背景放大500%,然后设置了一个15秒的动画,动画infinite无限循环。
动画部分就是对背景进行一个定位,实现渐变颜色的动态切换。
html结构
css样式
gitee地址: siebe/html-css-demo ()
html怎么实现网页背景色动态选择?
图中所显示的是html5的 input color类型,在js中以 元素.value 来获取颜色 通过 元素.onchange来实现实时修改背景颜色。
!--HTML代码--
input type="color" name = "colorselect"
//js代码
var color = document.getElementsByName("colorselect")[0]; //获取该元素
color.onchange = function(){document.body.bgColor = color.value}; //onchange事件实现实时更换
html5 canvas首屏自适应背景动画循环效果怎么插入
html5 canvas首屏自适应背景动画循环效果的插入方法:
1、demo.html代码如下:
html lang="en" class="no-js"head
meta charset="UTF-8"
meta http-equiv="X-UA-Compatible" content="IE=edge"
meta name="viewport" content="width=device-width, initial-scale=1"
titlehtml5 canvas首屏自适应背景动画循环效果代码/title
link rel="stylesheet" type="text/css" href="css/normalize.css"
link rel="stylesheet" type="text/css" href="css/demo.css"
!--必要样式--
link rel="stylesheet" type="text/css" href="css/component.css"
!--[if IE]
script src="js/html5.js"/script
![endif]--
/head
body
div class="container demo-1"
div class="content"
div id="large-header" class="large-header" style="height: 185px;"
canvas id="demo-canvas" width="1304" height="185"/canvas
h1 class="main-title"Connect span class="thin"Three/span/h1
/div
nav class="codrops-demos"
a class="current-demo" href="index.html"Demo 1/a
/nav
/div
/div!-- /container --
script src="js/TweenLite.min.js"/script
script src="js/EasePack.min.js"/script
script src="js/rAF.js"/script
script src="js/demo-1.js"/script
div class="sogoutip" style="z-index: 2147483645; visibility: hidden; display: none;"/divdiv class="sogoubottom" id="sougou_bottom" style="display: none;"/divdiv id="ext_stophi" style="z-index: 2147483647;"div class="extnoticebg"/divdiv class="extnotice"h2关闭提示 a href="#" title="关闭提示" id="closenotice" class="closenotice"关闭/a/h2p id="sogouconfirmtxt"/p a id="sogouconfirm" href="#" class="extconfirm"确 认/a a id="sogoucancel" href="#" class="extconfirm"取 消/a/div/divdiv id="ext_overlay" class="ext_overlayBG" style="display: none; z-index: 2147483646;"/diviframe class="sogou_sugg_feedbackquan" frameborder="0" scrolling="no" src=";w=1366v=7400st=1465483516429od=6612ls=1465482970132lc=lk=1463925952631sd=72cd=0kd=0u=1450532590172818y=EC8B5B0919EDD514D2F1263AA4A58EF6query=html5%20canvas%E9%A6%96%E5%B1%8F%E8%87%AA%E9%80%82%E5%BA%94%E8%83%8C%E6%99%AF%E5%8A%A8%E7%94%BB%E5%BE%AA%E7%8E%AF%E6%95%88%E6%9E%9C%E4%BB%A3%E7%A0%81|http%3A%2F%2F;r=http%3A%2F%2F" style="border: none; display: none; z-index: 2147483645; background: transparent;"/iframescript src=";uigs_productid=webexttype=ext_sugguigs_t=1465483517392lt=212ie=0v=7400y=EC8B5B0919EDD514D2F1263AA4A58EF6query=html5%20canvas%E9%A6%96%E5%B1%8F%E8%87%AA%E9%80%82%E5%BA%94%E8%83%8C%E6%99%AF%E5%8A%A8%E7%94%BB%E5%BE%AA%E7%8E%AF%E6%95%88%E6%9E%9C%E4%BB%A3%E7%A0%81|http%3A%2F%2F"/script
/body
/html
2、css样式如下:
article,aside,details,figcaption,figure,footer,header,hgroup,main,nav,section,summary{display:block;}audio,canvas,video{display:inline-block;}audio:not([controls]){display:none;height:0;}[hidden]{display:none;}html{font-family:sans-serif;-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%;}body{margin:0;}a:focus{outline:thin dotted;}a:active,a:hover{outline:0;}h1{font-size:2em;margin:0.67em 0;}abbr[title]{border-bottom:1px dotted;}b,strong{font-weight:bold;}dfn{font-style:italic;}hr{-moz-box-sizing:content-box;box-sizing:content-box;height:0;}mark{background:#ff0;color:#000;}code,kbd,pre,samp{font-family:monospace,serif;font-size:1em;}pre{white-space:pre-wrap;}q{quotes:"\201C" "\201D" "\2018" "\2019";}small{font-size:80%;}sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:baseline;}sup{top:-0.5em;}sub{bottom:-0.25em;}img{border:0;}svg:not(:root){overflow:hidden;}figure{margin:0;}fieldset{border:1px solid #c0c0c0;margin:0 2px;padding:0.35em 0.625em 0.75em;}legend{border:0;padding:0;}button,input,select,textarea{font-family:inherit;font-size:100%;margin:0;}button,input{line-height:normal;}button,select{text-transform:none;}button,html input[type="button"],input[type="reset"],input[type="submit"]{-webkit-appearance:button;cursor:pointer;}button[disabled],html input[disabled]{cursor:default;}input[type="checkbox"],input[type="radio"]{box-sizing:border-box;padding:0;}input[type="search"]{-webkit-appearance:textfield;-moz-box-sizing:content-box;-webkit-box-sizing:content-box;box-sizing:content-box;}input[type="search"]::-webkit-search-cancel-button,input[type="search"]::-webkit-search-decoration{-webkit-appearance:none;}button::-moz-focus-inner,input::-moz-focus-inner{border:0;padding:0;}textarea{overflow:auto;vertical-align:top;}table{border-collapse:collapse;border-spacing:0;}