scrollbar - Force jQuery UI dialog to show scroll bars -

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i'm using jquery ui dialog boxes on site show pop-up forms. forms tend longer modal box, there vertical scrolling involved.

when scroll trackpad or mousewheel vertical scroll bar shows on right hand side , fades out again. need scroll bar visible @ times.

i've googled no avail. idea how this?

here's html:

<p class="open-support-form">click request support</p> <div id="support-form" class="dialog" title="request support">     <p>support line: 0800 123 4567</p>     <p>email: helpdeskuk@company.com</p>     <p><a href="#">screensteps manual</a></p>     <p>more content</p>  </div>

here's jquery:

// support form jquery( "#support-form" ).dialog({     autoopen: false,     height: 500,     width: 500,     modal: true,     close: function() {         allfields.val( "" ).removeclass( "ui-state-error" );     } });  jquery( ".open-support-form" )     .click(function() {         jquery( "#support-form" ).dialog( "open" );     });

here's fiddle: http://jsfiddle.net/nk4fm/1/

this webkit issue. can learn more here: how can prevent scroll bars being hidden os x trackpad users in webkit/blink?.

i added following css:

.ui-dialog-content::-webkit-scrollbar {   -webkit-appearance: none;   width: 11px;   height: 11px; }  .ui-dialog-content::-webkit-scrollbar-thumb {   border-radius: 8px;   border: 2px solid white; /* should match background, can't transparent */   background-color: rgba(0, 0, 0, .5); }

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