Yes I resolve it with this code.
Code:
/* Fix helix3 */
div#Kunena #ktop span.ktoggler, div#Kunena div.kblock span.ktoggler {
-webkit-box-sizing: content-box;
-moz-box-sizing: content-box;
box-sizing: content-box;
}
#Kunena a.close {
float: none;
}
div#Kunena .kfile-hide input,img.btnImage, div#Kunena input:not([type]), div#Kunena input[type=color], div#Kunena input[type=date], div#Kunena input[type=datetime-local], div#Kunena input[type=datetime], div#Kunena input[type=email], div#Kunena input[type=month], div#Kunena input[type=number], div#Kunena input[type=password], div#Kunena input[type=search], div#Kunena input[type=tel], div#Kunena input[type=text], div#Kunena input[type=time], div#Kunena input[type=url], div#Kunena input[type=week], div#Kunena select, div#Kunena select:focus, div#Kunena select:hover, div#Kunena textarea {
display: inline-block;
}
#Kunena .kprofileboxcnt .input span input[type="checkbox"] {
vertical-align: middle;
margin-left: 5px;
}