margin

1.ListView组件介绍 布局文件arrays.xml <?xml version="1.0" encoding="utf-8"?> <resources> <array name="name"> <item>C#编程词典</item> <item>JAVA编程词典</item> <item>VB编程词典</item> <item>VC编程词典</item> <item>ASP编程词典</item> <item>Delphi编程词典</item> <item>ASP.NET编程词典</item> <item>C#编程词典</item> <item>JAVA编程词典</item> <item>VB编程词典</item> <item>VC编程词典</item> <item>ASP编程词典</item> <item>Delphi编程词典</item> <item>ASP.NET编程词典</item> </array> </resources> <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android

< style > . big_box { position : relative ; border : 1 px solid red ; width : 600 px ; height : 600 px ; margin : 150 px auto ; } . box { position : absolute ; top : 25 % ; left : 25 % ; width : 50 % ; height : 50 % ; border : 1 px solid black ; transform - style : preserve - 3 d ; /*perspective: 500px;*/ animation : r1 8 s linear infinite ; /* margin:0 auto; */ cursor : cell ; /* cursor 是鼠标经过时的样式 */ } . box : hover { transform : rotate ( 360 deg ) rotateX ( 360 deg ) rotate ( 360 deg ) ; } . box > div { position : absolute ; top : 0 ; left : 0 ; width : 100 % ; height : 100 % ; opacity : 0.6

html, body, div, span, applet, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre, a, abbr, acronym, address, big, cite, code, del, dfn, em, img, ins, kbd, q, s, samp, small, strike, strong, sub, sup, tt, var, b, u, i, center, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, table, caption, tbody, tfoot, thead, tr, th, td, article, aside, canvas, details, embed, figure, figcaption, footer, header, hgroup, menu, nav, output, ruby, section, summary, time, mark, audio, video { margin: 0; padding: 0; border: 0; font-size: 100%; font: inherit; vertical-align: baseline; outline: none;