<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>CSS样式表</title> <style type="text/css"> .divclassB{ 100px; height:100px; border:1px green dotted; background:#0F0 ; margin-top:10px; } *{ font:"黑体"; margin:0px; padding:0px;} div{ background-color:#C00} #DD{ 100px; height:100px; border:1px green dotted; background:#0F0 ; margin-top:10px; } </style> <link href="Untitled-2.css" rel="stylesheet" type="text/css" /> </head> <body> <div class="divclassA" style="100px; height:100px; border:1px red solid;">内联样式表</div> <div class="divclassB">内嵌样式表</div> <div class="divclassC"></div> <div class="divclassD" id="DD" name="dd"></div> </body> </html>
样式表的几点常用:background-color: 背景颜色
background-image:url 设置图片背景
background-repeat平铺 repeat-x 横向平铺
background-position:center 背景居中
background-position:right top 图片在右上角
font-family 字体
font-weight:bold 加粗
font-style:italic 倾斜
text-decoration:underline下划线
text-align:center 水平居中对齐 left right
vertical-align:middle 垂直居中 top bottom
{margin in:opx auto;}自动居中
hover 鼠标移上去
position与absolute
外层没有position:absolute(或relative),div相对于浏览器定位。有的话,div相对于边框定位
.divclassA :hover{cursor:pointer}有小手
a{ text-decoration:none}有下划线
a:hover{text-decoration:underline}鼠标移上去有下划线
a:active{background:black}点击一瞬间背景变黑
a:visited 所有被访问的链接
导航栏简易制作
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>无标题文档</title> <style type="text/css"> #nav{ 800px; height:100px; border:1px solid black; margin:0px auto; } .nav-banner{ text-align:center; line-height:100px; 20%; height:100px; float:left; position:relative; } .nav-banner:hover{ background-color:#0F9; color:#F00; cursor:pointer; } </style> </head> <body> <div id="nav"> <div class="nav-banner">第一导航</div> <div class="nav-banner">第二导航</div> <div class="nav-banner">第三导航</div> <div class="nav-banner">第四导航</div> <div class="nav-banner">第五导航</div> </div> </body> </html>