Styling asp.net MVC validation summary as Twitter bootstrap "flash"

jquery.validate.unobtrusive.js

    function onErrors(form, validator) {  // 'this' is the form element
        var container = $(this).find("[data-valmsg-summary=true]"),
            list = container.find("ul");

        if (list && list.length && validator.errorList.length) {
            list.empty();
            container.addClass("validation-summary-errors").removeClass("validation-summary-valid");

            $.each(validator.errorList, function () {
                $("<li />").html(this.message).appendTo(list);
            });

            // callback to show the summary has been shown
            // unobtrusive validation has no inputs so hook into global object
            if (window.onValidatorSummaryShown) {
                window.onValidatorSummaryShown.call(container);
            }
        }
    }

scripts.js

    (function () {

        // add a close button to the '.validation-summary-errors' div "flash"

        function addCloseButton($container) {
        
            $('.close', $container).remove();

            $('<a>', {
                'class': 'close',
                'href': '#'
            }).append('×').click(function (e) {

                e.preventDefault();

                var $div = $(this).parent('div');

                $div.slideUp(function (e) {
                    $div.remove();
                });

            }).prependTo($container);

        };

        // detect the '.validation-summary-errors' div after full page postback
        if ($('.validation-summary-errors').length !== 0) {
            addCloseButton($('.validation-summary-errors'));
        }

        // the '.validation-summary-errors' has appeared without full page postback
        window.onValidatorSummaryShown = function () {
            addCloseButton(this);
        };

    } ());

styles.css

.validation-summary-errors,
.alert-message 
{
   clear:both;
  position: relative;
  padding: 7px 15px;
  margin-bottom: 18px;
  color: #404040;
  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);
  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);
}
.validation-summary-errors .close,
.alert-message .close {
  margin-top: 1px;
  *margin-top: 0;
}
.validation-summary-errors a,
.alert-message a {
  font-weight: bold;
  color: #404040;
}
.validation-summary-errors p a,
.alert-message.danger p a,
.alert-message.error p a,
.alert-message.success p a,
.alert-message.info p a {
  color: #ffffff;
}
.alert-message h5 {
  line-height: 18px;
}
.validation-summary-errors p,
.alert-message p {
  margin-bottom: 0;
}
.validation-summary-errors div,
.alert-message div {
  margin-top: 5px;
  margin-bottom: 2px;
  line-height: 28px;
}
.alert-message .btn {
  -webkit-box-shadow: 0 1px 0 rgba(255, 255, 255, 0.25);
  -moz-box-shadow: 0 1px 0 rgba(255, 255, 255, 0.25);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.25);
}
.alert-message.block-message {
  background-image: none;
  background-color: #fdf5d9;
  filter: progid:DXImageTransform.Microsoft.gradient(enabled = false);
  padding: 14px;
  border-color: #fceec1;
  -webkit-box-shadow: none;
  -moz-box-shadow: none;
  box-shadow: none;
}

.validation-summary-errors ul,
.alert-message.block-message ul, .alert-message.block-message p {
  margin-right: 30px;
}
.validation-summary-errors ul,
.alert-message.block-message ul {
  margin-bottom: 0;
}
.alert-message.block-message li {
  color: #404040;
}
.alert-message.block-message .alert-actions {
  margin-top: 5px;
}
.alert-message.block-message.error, .alert-message.block-message.success, .alert-message.block-message.info {
  color: #404040;
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.5);
}
.alert-message.block-message.error {
  background-color: #fddfde;
  border-color: #fbc7c6;
}
.alert-message.block-message.success {
  background-color: #d1eed1;
  border-color: #bfe7bf;
}
.alert-message.block-message.info {
  background-color: #ddf4fb;
  border-color: #c6edf9;
}
.alert-message.block-message.danger p a,
.alert-message.block-message.error p a,
.alert-message.block-message.success p a,
.alert-message.block-message.info p a {
  color: #404040;
}


.validation-summary-errors,
.btn.danger,
.alert-message.danger,
.btn.danger:hover,
.alert-message.danger:hover,
.btn.error,
.alert-message.error,
.btn.error:hover,
.alert-message.error:hover,
.btn.success,
.alert-message.success,
.btn.success:hover,
.alert-message.success:hover,
.btn.info,
.alert-message.info,
.btn.info:hover,
.alert-message.info:hover {
  color: #ffffff;
}
.btn .close, .alert-message .close {
  font-family: Arial, sans-serif;
  line-height: 18px;
}

.validation-summary-errors,
.btn.danger,
.alert-message.danger,
.btn.error,
.alert-message.error {
  background-color: #c43c35;
  background-repeat: repeat-x;
  background-image: -khtml-gradient(linear, left top, left bottom, from(#ee5f5b), to(#c43c35));
  background-image: -moz-linear-gradient(top, #ee5f5b, #c43c35);
  background-image: -ms-linear-gradient(top, #ee5f5b, #c43c35);
  background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #ee5f5b), color-stop(100%, #c43c35));
  background-image: -webkit-linear-gradient(top, #ee5f5b, #c43c35);
  background-image: -o-linear-gradient(top, #ee5f5b, #c43c35);
  background-image: linear-gradient(top, #ee5f5b, #c43c35);
  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ee5f5b', endColorstr='#c43c35', GradientType=0);
  text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.25);
  border-color: #c43c35 #c43c35 #882a25;
  border-color: rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.25);
}
.btn.success, .alert-message.success {
  background-color: #57a957;
  background-repeat: repeat-x;
  background-image: -khtml-gradient(linear, left top, left bottom, from(#62c462), to(#57a957));
  background-image: -moz-linear-gradient(top, #62c462, #57a957);
  background-image: -ms-linear-gradient(top, #62c462, #57a957);
  background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #62c462), color-stop(100%, #57a957));
  background-image: -webkit-linear-gradient(top, #62c462, #57a957);
  background-image: -o-linear-gradient(top, #62c462, #57a957);
  background-image: linear-gradient(top, #62c462, #57a957);
  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#62c462', endColorstr='#57a957', GradientType=0);
  text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.25);
  border-color: #57a957 #57a957 #3d773d;
  border-color: rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.25);
}
.btn.info, .alert-message.info {
  background-color: #339bb9;
  background-repeat: repeat-x;
  background-image: -khtml-gradient(linear, left top, left bottom, from(#5bc0de), to(#339bb9));
  background-image: -moz-linear-gradient(top, #5bc0de, #339bb9);
  background-image: -ms-linear-gradient(top, #5bc0de, #339bb9);
  background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #5bc0de), color-stop(100%, #339bb9));
  background-image: -webkit-linear-gradient(top, #5bc0de, #339bb9);
  background-image: -o-linear-gradient(top, #5bc0de, #339bb9);
  background-image: linear-gradient(top, #5bc0de, #339bb9);
  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#5bc0de', endColorstr='#339bb9', GradientType=0);
  text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.25);
  border-color: #339bb9 #339bb9 #22697d;
  border-color: rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.25);
}