Contact Form Multi Column Not Work after update enfold

Hi Kriesi Team,

My contact form 7 multi column seems broken after update.

i use these code

<div class=”flex_column av_one_half first”>First Name (required) [text* first-name]</div>

<div class=”flex_column av_one_half”>Last Name (required) [text* last-name]</div>

<div class=”flex_column av_one_half first”>Email (required) [email* your-email]</div>

<div class=”flex_column av_one_half”>Your Interest (required) [select* your-interest include_blank "Web Design" "Web Maintenance" "Online Makerting" "Other"]</div>

<div class=”flex_column “>Subject (required) [text* Model your-subject]</div>

<div class=”flex_column”>Message (required) [textarea your-message]</div>

<p>Are You Human?
[captchac captcha-810]<br />
Input The Code : [captchar captcha-810]</p>

[submit]

i also add css to styling editor

input.wpcf7-form-control.wpcf7-text {
width: 100% !important;
}
select.wpcf7-form-control, input.wpcf7-text{
width: 100% !important;
}

can you tell me how to fix it?

regards

Hanson