Image and audio elements

picture element

使用img元素
1.src属性:图片路径
2.alt属性:图片无法显示时使用的替代文本(关键词)
3.title属性:鼠标悬停时显示的文字

Make image hyperlinks

在同一个页面点击不同的位置显示不同的页面
使用map和area元素
map是area的父元素

x轴为水平方向
y轴为垂直方向


例:
<div>

    <img  usemap="#a" src="../images/solar.jpg" alt="zhezhangtupianyouwenti" title="这是一张太阳系图片"/>


<!--为了解决兼容性,map需要同时添加name和id属性.-->
<map name="a" id="a">
    <!--
        shape:点击区域的形状(矩形rectangle\圆形circle\多边形poly)
        coords:形状的位置
               矩形:(左上角X轴坐标,左上角Y轴坐标,右下角X轴坐标,右下角Y轴坐标)
               圆形:(圆心点X轴,圆心点Y轴,半径)
        href:形状的链接地址

    -->

    <area shape="rectangle" coords="333,276,391,317" href="index.html" alt=""/>
    <area shape="rectangle" coords="149,238,183,275" href="dingweilianxi.html" alt=""/>
    <area shape="circle" coords="360,206,53" href="kongbaizhedie.html" alt=""/>
</map>

 

image annotation

figure:父级元素
子级元素:figcaption和img
figcaption是对img的解释或相关性内容

videovideo audiovudio

格式:<video scr="视频地址"> </video> 
controls(视频控件)
autoplay(自动播放)
loop(循环播放)
  • If you want to set the width and height of the image, when you want it to be proportionally scaled, then only set its width or only its height; if it is not proportionally scaled, you must reset its width and height.
  • Set the background color to the desired image: background-image: url("Path location of the image");

    Steps to implement a sprite map (non-block-level elements include)

    1.给尺寸(宽、高)
    2.引用位置(background-image:url("图片地址"))
    3.给位置(background-position:x轴 y轴)

Guess you like

Origin http://10.200.1.11:23101/article/api/json?id=326568718&siteId=291194637