 
  
  const sorted = (data, keys) => Array
  .from(data, n => [ n ].concat(keys(n)))
  .sort((a, b) => {
    let diff = 0;
    for (let i = 0; ++i < a.length && !(diff = ((a[i] < b[i]) ? -1 : +(a[i] > b[i])));) ;
    return diff;
  })
  .map(n => n[0]);const sortChildren = (el, keys) =>
  el.append(...sorted(el.children, keys));const ul = document.querySelector('ul');
ul.addEventListener('change', e => sortChildren(
  e.currentTarget,
  el => [
    -el.querySelector('input').checked,
    el.innerText.trim().toLowerCase(),
  ]
));
ul.dispatchEvent(new Event('change'));<div class="content">
    <div class="tech">Бренд</div>
    <div class="tech">Guardo</div>
    <div class="tech">Тип индикации</div>
    <div class="tech">Стрелочная</div>
    <div class="tech">Тип механизма</div>
    <div class="tech">Кварцевый</div>
</div>$('#form').validate({
    rules: {
        name: {
            required: true
        }
    },
    messages: {
        name: {
            required: "Поле обязательно для заполнения"
        }
    },
    submitHandler: function(form) {
        $(form).ajaxSubmit({
            type:"POST",
            data: $(form).serialize(),
            url:"mail.php",
            success: function() {
                });
            },
            error: function() {
            }
        });
    }
});<?php
    $to = 'твой ящик ';
    $from = $_REQUEST['email'];
    $name = $_REQUEST['name'];
    $headers = array(); 
    $headers[] = "MIME-Version: 1.0"; 
    $headers[] = "Content-type: text/plain; charset=utf-8"; 
    $headers[] = "From: $from";
    $headers[] = "X-Mailer: PHP/".phpversion(); 
    $subject = "Тема письма";
    $fields = array();
    $fields{"name"} = "ФИО";
    // Добавляем нужные поля формы
    $body = "Данные формы:\n\n"; foreach($fields as $a => $b){   $body .= sprintf("%s: %s\n",$b,$_REQUEST[$a]); }
    $send = mail($to, $subject, $body, implode("\r\n", $headers));
?>