Полоса в всплывающем окне

.ui-dialog, .ui-button { -webkit-border-radius: 0px; -moz-border-radius: 0px; border-radius: 0px; }
 
.ui-widget-overlay { background: #fff; left: 0; position: absolute; top: 0; }
.ui-helper-clearfix:after { clear: both; content: "."; display: block; height: 0; visibility: hidden; }
.ui-helper-clearfix { display: inline-block; }
* html .ui-helper-clearfix { height: 1%; }
.ui-helper-clearfix { display: block; }
.ui-icon { background-repeat: no-repeat; display: block; overflow: hidden; text-indent: -99999px; }
.ui-widget-header { color: #ccc; height:41px;border-bottom:1px solid #428bca;position:relative;cursor:move; }
.ui-widget-header a { color: #1A1A1A; }
.ui-widget-header .ui-icon {position:absolute;top:11px;right:10px;width:17px;height:17px;background:url('../images/close.png') no-repeat;}
.ui-state-hover .ui-icon, .ui-state-focus .ui-icon { background-color: #000; }
.ui-icon-close { background-position: -80px -128px;}
.ui-icon-closethick { background-position: -96px -128px; }
.ui-dialog { background: #1a1a1a; overflow: hidden; padding: 0px; position: absolute; width: 300px;
    -moz-box-shadow: 0px 0px 8px rgba(0, 0, 0, 0.3);
    -webkit-box-shadow: 0px 0px 8px rgba(0, 0, 0, 0.3);
    box-shadow: 0px 0px 8px rgba(0, 0, 0, 0.3);
}
.ui-dialog .ui-dialog-titlebar {padding: 10px 0 5px 12px; position: relative; }
.ui-dialog .ui-dialog-title { float: left; margin: .1em 13px .3em 0;}
 
.ui-dialog .ui-dialog-titlebar-close:hover {background:rgba(0,0,0,0.6);color:#fff;}
.ui-dialog .ui-dialog-titlebar-close:active {background-image:none;color:#fff;}
 
.ui-dialog .ui-dialog-titlebar-close span { display: block; margin: 1px; }
.ui-dialog .ui-dialog-content {
    background: #ccc;
    border: 0;
    overflow: hidden;
    padding:13px;
    position: relative;
    zoom: 1;
    background-color: #fff;
    -webkit-border-top-left-radius: 0px;
    -webkit-border-top-right-radius: 0px;
    -moz-border-radius-topleft: 0px;
    -moz-border-radius-topright: 0px;
    border-top-left-radius: 0px;
    border-top-right-radius: 0px;
}
.ui-dialog .ui-dialog-buttonpane {
    background: #fff;
    padding: 13px;
    text-align: left;
    -webkit-border-bottom-right-radius: 0px;
    -webkit-border-bottom-left-radius: 0px;
    -moz-border-radius-bottomright: 0px;
    -moz-border-radius-bottomleft: 0px;
    border-bottom-right-radius: 0px;
    border-bottom-left-radius: 0px;
}
.ui-dialog .ui-dialog-buttonpane button {
    cursor: pointer;
    float: right;
    line-height: 1.4em;
    margin: 0 2px;
    overflow: visible;
    padding: .2em .6em .3em .6em;
    width: auto;
}
 
.ui-button {
 color: white;
  text-decoration: none;
  padding: .2em 1em calc(.2em + 0px);
  border-radius: 3px;
  background: rgb(66,138,202);
  box-shadow: 0 -3px rgb(54,105,150) inset;
  transition: 0.2s;
  border: 0px;
} 
  color: #fff;
  cursor: pointer;
  font-size: 12px;
  font-weight: none;
  height: 25px;
  padding: 0 0px;
  text-transform: uppercase;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.54);
  z-index: -1;
}
.ui-button:hover, .ui-button:hover {text-shadow: 0 0 0px #fff;}
 
.ui-state-error {
    background: #fef1ec 50% 50% repeat-x !important;
    border: 10px solid #cd0a0a;
    color: #cd0a0a;
}
.ui-draggable .ui-dialog-titlebar { cursor: move; }