Render enum field in toolbar

[awadhesh4772]

Hi All,

I have rendered enum field in toolbar which is working fine.

But it is not nicely fit in toolbar, may be due to default padding of forms/fields which is causing unecessary scrollbar.
Please refer screen shot.

Codes;

{type : 'html',  id: 'txTests',
		        	        html: function (item) {
		        	            var html = '<div id="divTests" style="width: 600px; height: 100%;"></div>';
		        	            return html;
		        	        }

$('#divTests').w2form({
    name: 'fmTests',
    fields: [{field: 'enum', type: 'enum',
            	html: {label: 'Select Test(s)',attr: 'style="width: 400px"'},
            	options: {openOnFocus: true, items: ['RTPCR', 'CBC', 'LFT', 'KFT', 'TSH']}
        }]
	});

Can anyone help please to make properly fit in toolbar, without scrolbar. Thanks!