css3 制作镂空的文字效果

  .lou-kong {
            width: 500px;
            height: 200px;
            margin: 100px auto;
            font-size: 100px;
            background-color: #000;
            line-height: 200px;
            padding: 100px 50px;
            -webkit-text-stroke: 1px red;
            font-family: SimSun;
            color: transparent;
            text-shadow: 10px 0px 10px #f0f,
                10px 0px 20px #f0f,
                10px 0px 30px #f0f;
        }
   <div class="lou-kong">您好</div>