define button border size for ie

bootstrap-1.0.0.css

@@ -6,7 +6,7 @@
  * http://www.apache.org/licenses/LICENSE-2.0
  *
  * Designed and built with all the love in the world @twitter by @mdo and @fat.
- * Date: Sun Aug 21 13:22:36 PDT 2011
+ * Date: Sun Aug 21 13:25:57 PDT 2011
  */
 /* Reset.less
  * Props to Eric Meyer (meyerweb.com) for his CSS reset file. We're using an adapted version here	that cuts out some of the reset HTML elements we will never need here (i.e., dfn, samp, etc).
@@ -396,7 +396,7 @@ a:hover {
   font-size: 13px;
   line-height: 18px;
   border: 1px solid rgba(0, 0, 0, 0.1);
-  border-bottom-color: #ddd;
+  border-bottom: 1px solid #ddd;
   border-bottom-color: rgba(0, 0, 0, 0.25);
   -webkit-border-radius: 4px;
   -moz-border-radius: 4px;

bootstrap-1.0.0.min.css

@@ -47,7 +47,7 @@ div.container-fluid:after{clear:both;}
 div.container-fluid div.sidebar{float:left;width:220px;}
 div.container-fluid div.content{min-width:700px;max-width:1180px;margin-left:240px;}
 a{color:#0069d6;text-decoration:none;line-height:inherit;}a:hover{color:#0050a3;text-decoration:underline;}
-.btn{display:inline-block;background-color:#e6e6e6;background-repeat:no-repeat;background-image:-webkit-gradient(linear, 0 0, 0 100%, from(#ffffff), color-stop(0.25, #ffffff), to(#e6e6e6));background-image:-webkit-linear-gradient(#ffffff, color-stop(0.25, #ffffff), #e6e6e6);background-image:-moz-linear-gradient(#ffffff, color-stop(#ffffff, 0.25), #e6e6e6);background-image:-ms-linear-gradient(#ffffff, color-stop(#ffffff, 0.25), #e6e6e6);background-image:-o-linear-gradient(#ffffff, color-stop(#ffffff, 0.25), #e6e6e6);background-image:linear-gradient(#ffffff, color-stop(#ffffff, 0.25), #e6e6e6);padding:4px 14px;text-shadow:0 1px 1px rgba(255, 255, 255, 0.75);color:#333333;font-size:13px;line-height:18px;border:1px solid rgba(0, 0, 0, 0.1);border-bottom-color:#ddd;border-bottom-color:rgba(0, 0, 0, 0.25);-webkit-border-radius:4px;-moz-border-radius:4px;border-radius:4px;-webkit-box-shadow:inset 0 1px 0 rgba(255, 255, 255, 0.2),0 1px 2px rgba(0, 0, 0, 0.05);-moz-box-shadow:inset 0 1px 0 rgba(255, 255, 255, 0.2),0 1px 2px rgba(0, 0, 0, 0.05);box-shadow:inset 0 1px 0 rgba(255, 255, 255, 0.2),0 1px 2px rgba(0, 0, 0, 0.05);-webkit-transition:0.1s linear all;-moz-transition:0.1s linear all;transition:0.1s linear all;}.btn:hover{background-position:0 -15px;color:#333333;text-decoration:none;}
+.btn{display:inline-block;background-color:#e6e6e6;background-repeat:no-repeat;background-image:-webkit-gradient(linear, 0 0, 0 100%, from(#ffffff), color-stop(0.25, #ffffff), to(#e6e6e6));background-image:-webkit-linear-gradient(#ffffff, color-stop(0.25, #ffffff), #e6e6e6);background-image:-moz-linear-gradient(#ffffff, color-stop(#ffffff, 0.25), #e6e6e6);background-image:-ms-linear-gradient(#ffffff, color-stop(#ffffff, 0.25), #e6e6e6);background-image:-o-linear-gradient(#ffffff, color-stop(#ffffff, 0.25), #e6e6e6);background-image:linear-gradient(#ffffff, color-stop(#ffffff, 0.25), #e6e6e6);padding:4px 14px;text-shadow:0 1px 1px rgba(255, 255, 255, 0.75);color:#333333;font-size:13px;line-height:18px;border:1px solid rgba(0, 0, 0, 0.1);border-bottom:1px solid #ddd;border-bottom-color:rgba(0, 0, 0, 0.25);-webkit-border-radius:4px;-moz-border-radius:4px;border-radius:4px;-webkit-box-shadow:inset 0 1px 0 rgba(255, 255, 255, 0.2),0 1px 2px rgba(0, 0, 0, 0.05);-moz-box-shadow:inset 0 1px 0 rgba(255, 255, 255, 0.2),0 1px 2px rgba(0, 0, 0, 0.05);box-shadow:inset 0 1px 0 rgba(255, 255, 255, 0.2),0 1px 2px rgba(0, 0, 0, 0.05);-webkit-transition:0.1s linear all;-moz-transition:0.1s linear all;transition:0.1s linear all;}.btn:hover{background-position:0 -15px;color:#333333;text-decoration:none;}
 .btn.primary{background-color:#0064cd;background-repeat:repeat-x;background-image:-khtml-gradient(linear, left top, left bottom, from(#049cdb), to(#0064cd));background-image:-moz-linear-gradient(#049cdb, #0064cd);background-image:-ms-linear-gradient(#049cdb, #0064cd);background-image:-webkit-gradient(linear, left top, left bottom, color-stop(0%, #049cdb), color-stop(100%, #0064cd));background-image:-webkit-linear-gradient(#049cdb, #0064cd);background-image:-o-linear-gradient(#049cdb, #0064cd);-ms-filter:"progid:DXImageTransform.Microsoft.gradient(startColorstr='#049cdb', endColorstr='#0064cd', GradientType=0)";filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#049cdb', endColorstr='#0064cd', GradientType=0);background-image:linear-gradient(#049cdb, #0064cd);color:#fff;text-shadow:0 -1px 0 rgba(0, 0, 0, 0.25);border-bottom-color:#003f81;border-bottom-color:rgba(0, 0, 0, 0.25);}.btn.primary:hover{color:#fff;}
 .btn.large{font-size:16px;line-height:28px;-webkit-border-radius:6px;-moz-border-radius:6px;border-radius:6px;}
 .btn.small{padding-right:9px;padding-left:9px;font-size:11px;}

lib/preboot.less

@@ -190,7 +190,7 @@
   font-size: @fontSize;
   line-height: @baseline;
   border: 1px solid @borderColor;
-  border-bottom-color: #ddd;
+  border-bottom: 1px solid #ddd;
   border-bottom-color: fadein(@borderColor, 15%);
   .border-radius(@borderRadius);
   @shadow: inset 0 1px 0 rgba(255,255,255,.2), 0 1px 2px rgba(0,0,0,.05);