add "shadows" for ie buttons

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 13:04:33 PDT 2011
+ * Date: Sun Aug 21 13:22:36 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).
@@ -396,6 +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-color: rgba(0, 0, 0, 0.25);
   -webkit-border-radius: 4px;
   -moz-border-radius: 4px;
@@ -426,6 +427,8 @@ a:hover {
   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;

bootstrap-1.0.0.min.css

@@ -47,8 +47,8 @@ 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: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);}.btn.primary:hover{color:#fff;}
+.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.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;}
 .btn:disabled,.btn.disabled{background-image:none;filter:alpha(opacity=65);-khtml-opacity:0.65;-moz-opacity:0.65;opacity:0.65;cursor:default;}

lib/preboot.less

@@ -190,6 +190,7 @@
   font-size: @fontSize;
   line-height: @baseline;
   border: 1px solid @borderColor;
+  border-bottom-color: #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);

lib/scaffolding.less

@@ -101,6 +101,8 @@ a {
     #gradient > .vertical(@blue, @blueDark);
     color: #fff;
     text-shadow: 0 -1px 0 rgba(0,0,0,.25);
+    border-bottom-color: darken(@blueDark, 15%);
+    border-bottom-color: fadein(rgba(0,0,0,.1), 15%);
     &:hover {
       color: #fff;
     }