javascript - Getting child input from div jquery -

i have repeater has usercontrol inside shows me 3 security questions this:

<asp:repeater runat="server" id="rptsecurityquestions">     <itemtemplate>         <it:textboxcontrol_v2             id="txtquestion"             runat="server"             showlabel="true"             minlength="1"             maxlength="64"             label='<%# databinder.eval (container.dataitem, "question") %>'             regexexpression=""             textmode="singleline"             cssclass="field field-padding-r metro col-centered securityquestions"             isrequired="true" />     </itemtemplate> </asp:repeater> 

and displays 3 times:

    <div class="securityquestions">         <span>question 1</span>       <input></input>     </div> 

all want inputs child of div.

i tried didn't work out.

$(this).children('securityquestions').addclass('hover_triangle'); 

it simple typo error

specify class prefixing .

   $(this).find('.securityquestionsinput[type="text"]').addclass('hover_triangle'); 

if want apply class parent of input element use below

$(this).find('.securityquestionsinput[type="text"]').parent().addclass('hover_triangle'); 

demo:

$('#test').find('.test input[type="text"]').addclass('hover_triangle');

.hover_triangle{background-color:red}

        <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>          <div id="test">          	<div class="test"><input type="text"></div>          	<div class="test">2</div>          	<div class="test">3</div>          	<div class="test">4</div>          	<div class="test">5</div>          	<div class="test">6</div>          </div>