首个下拉栏前空出一段距离

<ul class="brand_right">
                    <li><a href="#">返回 Bootstrap 中文网a>li>
                    <li><a href="#">官方博客a>li>
                    <li><a href="#">优站精选a>li>
                    <li>
                        <a href="#">v3<i class="glyphicon glyphicon-chevron-down">i>
                            <div class="adow">
                                <div class="adow_con"><a href="#">123a>div>
                                <div class="adow_con"><a href="#">123a>div>
                                <div class="adow_con"><a href="#">123a>div>
                                <div class="adow_con"><a href="#">123a>div>
                            div>
                        a>
                    li>        
                ul>

header a {
    display: inline-block;
    padding: 0 10px;
    height: 100%;
    line-height: 50px;
    color: #553f79;
    font-size: 15px;
}
唯一有影响的只有他了

问题图片

控制台图片

这样写会有问题的吧，adow_con下的a闭合就有问题了，可以这样

<li>
                    <a href="#">v3<i class="glyphicon glyphicon-chevron-down"></i></a>
                    <div class="adow">
                        <div class="adow_con"><a href="#">123</a></div>
                        <div class="adow_con"><a href="#">123</a></div>
                        <div class="adow_con"><a href="#">123</a></div>
                        <div class="adow_con"><a href="#">123</a></div>
                    </div>
                </li>

• 帮你找了个相似的问题, 你可以看下: https://ask.csdn.net/questions/7514781