Create multiple select box with jQuery

by terby

HTML

<!DOCTYPE html>
<html lang="tr">
<head>
<meta charset="UTF-8">
<title>Multiple Select</title>
<style>
  * { box-sizing: border-box; }
  body {
    font-family: Arial, Helvetica, sans-serif;
    background: #f5f5f5;
    padding: 40px;
  }

  .ms-wrapper {
    position: relative;
    width: 280px;
  }

  .ms-box {
    border: 1px solid #ccc;
    border-radius: 4px;
    background: #fff;
    padding: 8px 10px;
    cursor: pointer;
    font-size: 14px;
    color: #333;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .ms-box:hover {
    border-color: #999;
  }

  .ms-arrow {
    font-size: 10px;
    color: #888;
  }

  .ms-dropdown {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-top: 4px;
    border: 1px solid #ccc;
    border-radius: 4px;
    background: #fff;
    max-height: 220px;
    overflow-y: auto;
    z-index: 10;
  }

  .ms-dropdown.open {
    display: block;
  }

  .ms-option {
    padding: 8px 10px;
    font-size: 14px;
    color: #333;
    display: flex;
    align-items: center;
    cursor: pointer;
  }

  .ms-option:hover {
    background: #f0f0f0;
  }

  .ms-option input {
    margin-right: 8px;
  }

  .ms-option.ms-all {
    border-bottom: 1px solid #eee;
    font-weight: bold;
  }
</style>
</head>
<body>

<div class="ms-wrapper" id="msWrapper">
  <div class="ms-box" id="msBox">
    <span id="msLabel">Seçiniz</span>
    <span class="ms-arrow">▼</span>
  </div>
  <div class="ms-dropdown" id="msDropdown">
    <label class="ms-option ms-all">
      <input type="checkbox" id="msAll"> Tümü
    </label>
    <!-- Seçenekler buraya jQuery ile veya doğrudan eklenebilir -->
    <label class="ms-option"><input type="checkbox" class="ms-item" value="1"> Seçenek 1</label>
    <label class="ms-option"><input type="checkbox" class="ms-item" value="2"> Seçenek 2</label>
    <label...