云分销的海报怎么写代码能居中 _居中

1.怎么把海报网的栏目居中.ltop, .ltext, .lbot, .rtop, .rtext, .rbot {margin:0 auto !important;}
body {font:100%/1.4 黑体；}
.ltop, .lbot, .rtop, .rbot, .comtops, .comtexts, .combots, .ltext,.rtext, .tlt{background:none;border:none;}
.ltext *,.rtext * {color:#170417 !important;}
.rush TD, .cele_text P ,.comwidths {font-size:12px;}
.header, .i-footer, {display:none;}
.person_m a {background:none !important;}
.looklist, .person_m a, .ltext td *, .rtext td * {background:none !important;}
DIV.stext {border:none;}
a img {filter:alpha(opacity 50,style=3);}
a:hover img {filter:none;}
a:hover img {filter:Invert;}
a:hover {color:#A00000; letter-spacing : 3pt; TEXT-DECORATION: none; filter:glow(color=#FDC7C7, strength=6)width: 100%; height: 20%}
a:hover{ border: 1px #545454 outset }
html {scrollbar-face-color:#000;
scrollbar-arrow-color:#333;
scrollbar-track-color:#333;
scrollbar-3dlight-color:#333;
scrollbar-darkshadow-color:#333;
scrollbar-shadow-color:#000;
scrollbar-highlight-color:#000;}
2.求个单张海报全屏居中的代码,旺铺专业版,,谢谢<div style="height:500px;">
<div class="sn-simple-logo" style="padding:0px;left:50%;top:auto;">
<div class="sn-simple-logo" style="padding:0px;left:-960px;top:auto;">
<a href="http://img.ningxialong.com/220826/20064V440-0.jpg" style="width:1920px;height:500px;display:block;" target="_blank">
<img alt="全屏海报" border="0" src="http://img.ningxialong.com/220826/20064V440-0.jpg" /></a>
</div>
</div>
</div>
【云分销的海报怎么写代码能居中】

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