网页排版CSS教学

网页排版CSS教学(12) <DIV class=ex><SPAN class=ex>一般范例：</SPAN>BODY { background-attachment : fixed }<BR><SPAN class=ex>同轴范例：</SPAN>&lt;BODY style="background-attachment:fixed"&gt;</DIV></DIV><BR><BR><SPAN class=l>background-position</SPAN>　设定背景位置
<DIV><SPAN class=e>支　持：</SPAN><SPAN class=b>ＩＥ４、ＮＣ４</SPAN><BR><SPAN class=e>适　用：</SPAN><SPAN class=b>区块元素</SPAN> <BR><SPAN class=e>可能值：</SPAN>
<TABLE cellSpacing=0 cellPadding=2 width=500 border=1>
<TBODY>
<TR>
<TD class=c width=150>&lt;percent&gt; X% Y%</TD>
<TD class=d width=350>图形上X% Y%的点对准元素的X% Y%位置</TD></TR>
<TR>
<TD class=c width=150>&lt;length&gt; X Y</TD>
<TD class=d width=350>将图形左上角置于元素左上角水平 X垂直 Y之处</TD></TR>
<TR>
<TD class=c width=150>center</TD>
<TD class=d width=350>背景图形置于中央</TD></TR>
<TR>
<TD class=c width=150>left</TD>
<TD class=d width=350>背景图形对　左边</TD></TR>
<TR>
<TD class=c width=150>right</TD>
<TD class=d width=350>背景图形对　右边</TD></TR>
<TR>
<TD class=c width=150>top</TD>
<TD class=d width=350>背景图形对　顶部</TD></TR>
<TR>
<TD class=c width=150>bottom</TD>
<TD class=d width=350>背景图形对　底部</TD></TR></TBODY></TABLE><SPAN class=e>预设值：</SPAN><SPAN class=b>0% 0%</SPAN><BR><SPAN class=e>继承性：</SPAN><SPAN class=b>无</SPAN><BR>
<DIV class=ex><SPAN class=ex>一般范例：</SPAN>BODY { background- position : 100% 50% }<BR><SPAN class=ex>同轴范例：</SPAN>&lt;BODY style="background- position:100% 50%"&gt;</DIV></DIV><BR><BR><SPAN class=l>background</SPAN>　综合设定背景性质