Hi everyone! I have a stack with my work today. My stack here:

I have a select html element and it has MULTIPLE mode:

<select class="test" MULTIPLE></select>

(MULTIPLE mode also type as : multiple="multiple" i inclue here)

<select class="test" multiple='multiple'></select>

now i only want select this element in many normal select element:

<select class="test" ></select>
<select class="test" ></select>
<select class="test" multiple='multiple'></select>
<select class="test"> </select>

i was using jQ like this:

$(".test[!MULTIPLE]").css('border','solid 1px red');

but all select element has border red;

How can i get only select element MULTIPLE. And get select not MULTIPLE mode?