我有一个由页眉、正文和页脚的一系列 div 组成的对话框,这些 div 进一步细分为左、中和右部分。想象一个井字游戏板,你就会明白。出于某种原因,只要我在正文中心放置一个文本区域,它就会与左右正文 div 重叠。问题发生在使用“con”类的 div 部分的某个地方。
这是问题的图片: http: //s8.postimage.org/fvlt9qi51/Dialog_Overlap.jpg
编辑:我设法通过在 CSS 的 .con 部分中将 height: 100% 替换为 height: 175px 来使其工作。我不明白为什么看起来不错,但 height: 100% 却不行?包含构成对话框的所有子 div 的顶级 div 具有以像素为单位指定的尺寸,对话框页眉和页脚也是如此。为什么中间也必须指定一个精确的值?我不想这样做,因为这意味着我需要为每个对话框设置一个特殊的 CSS 类,以便可以将特定的高度值添加到对话框的中间。
HTML在下面,CSS在后面。
<div class="ttl">
<div class="ttlt">
<div class="ttlt-l"></div>
<div class="ttlt-m">
<a class="close" href="javascript:void(0);" onclick="cancelNotes();this.blur();return false;"></a>
<span>Create Note</span>
</div>
<div class="ttlt-r"></div>
</div>
<div class="ttlb">
<div class="ttlb-l"><span></span></div>
<div class="ttlb-m"><span></span></div>
<div class="ttlb-r"><span></span></div>
</div>
</div>
<div class="con">
<div class="con-l"></div>
<div class="">
<input type="hidden" id="hdnNoteID" />
<textarea id="txtNote" rows="11" cols="50"></textarea>
</div>
<div class="con-r"></div>
</div>
<div class="ftr">
<div class="ftr-l"></div>
<div class="ftr-m">
<a onclick="cancelNotes();this.blur();return false;" href="javascript:void(0);" class="btn"><span>Cancel</span></a>
<a onclick="addNotes();this.blur();return false;" href="javascript:void(0);" class="btn"><span>Add Note</span></a>
</div>
<div class="ftr-r"></div>
</div>
CSS
/* Title Bar */
.ttl { width:100%;height:38px; }
/* Close button */
.ttl a { margin-top:4px;display:block;float:right;width:23px;height:21px;background:transparent url("img/dialog/static.png") no-repeat -18px 0;cursor:default; }
.ttl a:hover { background-position:-18px -21px; }
.ttl a:active { background-position:-18px -42px;outline:none; }
.ttlt { width:100%;height:30px; }
.ttlt-l { width:9px;height:30px;background:transparent url("img/dialog/static.png") no-repeat;float:left; }
/* ttlt-m width is dialogue width (450px) - 18px (the left & right divs are 9px each) */
.ttlt-m { width:432px;height:30px;background:#000 url("img/dialog/horizontal.png") repeat-x;float:left; }
.ttlt-mWide { width:632px;height:30px;background:#000 url("img/dialog/horizontal.png") repeat-x;float:left; }
.ttlt-mExtraWide { width:930px;height:30px;background:#000 url("img/dialog/horizontal.png") repeat-x;float:left; }
.ttlt-r { width:9px;height:30px;background:transparent url("img/dialog/static.png") no-repeat -9px 0;float:left; }
.ttlt span { cursor:inherit;margin-left:4px;line-height:30px;color:#fff;font-weight:bold;font-family:Tahoma,"Lucida Grande",Verdana,Arial,Helvetica,sans-serif;font-size:11px; }
.ttlb { width:100%;height:8px; }
.ttlb span { display:none; }
.ttlb-l { width:9px;height:8px;background:#000 url("img/dialog/static.png") no-repeat 0 -30px;float:left; }
/* ttlb-m width is dialogue width (450px) - 18px (the left & right divs are 9px each) */
.ttlb-m { width:432px;height:8px;background:#fff url("img/dialog/horizontal.png") repeat-x 0 -67px;float:left; }
.ttlb-mWide { width:632px;height:8px;background:#fff url("img/dialog/horizontal.png") repeat-x 0 -67px;float:left; }
.ttlb-mExtraWide { width:930px;height:8px;background:#fff url("img/dialog/horizontal.png") repeat-x 0 -67px;float:left; }
.ttlb-r { width:9px;height:8px;background:#000 url("img/dialog/static.png") no-repeat -9px -30px;float:left; }
.tabbed .ttlb-l { background-position:0 -38px; }
.tabbed .ttlb-m { background-position:0 -75px; }
.tabbed .ttlb-r { background-position:-9px -38px; }
/* Body */
.con { width:100%;height:100%;background-color:#fff;font-family:Tahoma,"Lucida Grande",Verdana,Arial,Helvetica,sans-serif;font-size:11px; cle}
.con-l { width:9px;height:100%;background:#000 url("img/dialog/vertical.png") repeat-y;float:left; }
/* con-m width is dialogue width (450px) - 18px (the left & right divs are 9px each) */
.con-m { width:432px;height:100%;background-color:#fff;float:left; }
.con-m .top { margin-top:2px; }
.con-mWide { width:632px;height:100%;background-color:#fff;float:left; }
.con-mExtraWide { width:930px;height:100%;background-color:#fff;float:left; }
.con-r { width:9px;height:100%;background:#000 url("img/dialog/vertical.png") repeat-y -9px 0;float:left; }
/* Dialogue footer */
.ftr { width:100%;height:37px;font-family:Tahoma,"Lucida Grande",Verdana,Arial,Helvetica,sans-serif;font-size:11px; clear: left;}
.ftr-l { width:9px;height:37px;background:transparent url("img/dialog/static.png") no-repeat 0 -75px;float:left; }
/* ftr-m width is dialogue width (450px) - 18px (the left & right divs are 9px each) */
.ftr-m { width:432px;height:37px;background:#eee url("img/dialog/horizontal.png") repeat-x 0 -30px;float:left; }
.ftr-mWide { width:632px;height:37px;background:#eee url("img/dialog/horizontal.png") repeat-x 0 -30px;float:left; }
.ftr-mExtraWide { width:930px;height:37px;background:#eee url("img/dialog/horizontal.png") repeat-x 0 -30px;float:left; }
.ftr-r { width:9px;height:37px;background:transparent url("img/dialog/static.png") no-repeat -9px -75px;float:left; }