remove rounded corners on buttons from IE9 so gradients don't bleed out

bootstrap-1.2.0.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: Fri Sep  2 12:30:58 PDT 2011
+ * Date: Fri Sep  2 12:35:18 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).
@@ -1618,6 +1618,9 @@ footer {
   padding: 7px 9px 7px;
   font-size: 11px;
 }
+:root .alert-message, :root .btn {
+  border-radius: 0 \0;
+}
 button.btn::-moz-focus-inner, input[type=submit].btn::-moz-focus-inner {
   padding: 0;
   border: 0;

bootstrap-1.2.0.min.css

@@ -221,6 +221,7 @@ footer{margin-top:17px;padding-top:17px;border-top:1px solid #eee;}
 .btn[disabled]{cursor:default;background-image:none;filter:progid:DXImageTransform.Microsoft.gradient(enabled = false);filter:alpha(opacity=65);-khtml-opacity:0.65;-moz-opacity:0.65;opacity:0.65;-webkit-box-shadow:none;-moz-box-shadow:none;box-shadow:none;}
 .btn.large{font-size:16px;line-height:normal;padding:9px 14px 9px;-webkit-border-radius:6px;-moz-border-radius:6px;border-radius:6px;}
 .btn.small{padding:7px 9px 7px;font-size:11px;}
+:root .alert-message,:root .btn{border-radius:0 \0;}
 button.btn::-moz-focus-inner,input[type=submit].btn::-moz-focus-inner{padding:0;border:0;}
 .alert-message{background-color:#eedc94;background-repeat:repeat-x;background-image:-khtml-gradient(linear, left top, left bottom, from(#fceec1), to(#eedc94));background-image:-moz-linear-gradient(top, #fceec1, #eedc94);background-image:-ms-linear-gradient(top, #fceec1, #eedc94);background-image:-webkit-gradient(linear, left top, left bottom, color-stop(0%, #fceec1), color-stop(100%, #eedc94));background-image:-webkit-linear-gradient(top, #fceec1, #eedc94);background-image:-o-linear-gradient(top, #fceec1, #eedc94);background-image:linear-gradient(top, #fceec1, #eedc94);filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#fceec1', endColorstr='#eedc94', GradientType=0);text-shadow:0 -1px 0 rgba(0, 0, 0, 0.25);border-color:#eedc94 #eedc94 #e4c652;border-color:rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.25);margin-bottom:18px;padding:7px 14px;color:#404040;text-shadow:0 1px 0 rgba(255, 255, 255, 0.5);border-width:1px;border-style:solid;-webkit-border-radius:4px;-moz-border-radius:4px;border-radius:4px;-webkit-box-shadow:inset 0 1px 0 rgba(255, 255, 255, 0.25);-moz-box-shadow:inset 0 1px 0 rgba(255, 255, 255, 0.25);box-shadow:inset 0 1px 0 rgba(255, 255, 255, 0.25);}.alert-message h5{line-height:18px;}
 .alert-message p{margin-bottom:0;}

lib/patterns.less

@@ -429,7 +429,7 @@ footer {
   // Button Base
   cursor: pointer;
   display: inline-block;
-  #gradient > .vertical-three-colors(#ffffff, #ffffff, 0.25, darken(#ffffff, 10%));
+  #gradient > .vertical-three-colors(#ffffff, #ffffff, 0.25, darken(#ffffff, 10%)); // Don't use .gradientbar() here since it does a three-color gradient
   padding: 5px 14px 6px;
   text-shadow: 0 1px 1px rgba(255,255,255,.75);
   color: #333;
@@ -490,6 +490,11 @@ footer {
     font-size: 11px;
   }
 }
+// Super jank hack for removing border-radius from IE9 so we can keep filter gradients on alerts and buttons
+:root .alert-message,
+:root .btn {
+  border-radius: 0 \0;
+}
 
 // Help Firefox not be a jerk about adding extra padding to buttons
 button.btn,