CSS classes overlapping?_问答_开发者_运维开发者技术经验分享

开发者 https://www.devze.com 2023-03-10 07:52 出处：网络

this is the basics I know, but I can\'t seem to solve this. this is the code (snippet) ul#storage_list, ul.sub_folder{

this is the basics I know, but I can't seem to solve this. this is the code (snippet)

    ul#storage_list, ul.sub_folder{
        margin:0;
        padding:0;
        list-style:none;
        font-size: 12px;

    }

            ul#storage_list li{
                margin:0;
                line-height: 20px;
                display:block;
                cursor:pointer;
            }

                ul#storage_list li.file span.name{
                    background:url("/larea/site_images/file.png") left no-repeat;
                    padding-left: 20px;
                }

                ul#storage_list li.dir span.name{
                    margin-left:5px;
                    background:url("/larea/site_images/folder.png") left no-repeat;
                    padding-left: 20px;
                }

                    ul#storage_list li.dir span.pin{
                    background:url("/larea/site_images/folder_arrow.png") left no-repeat #fff;
                    width:10px;
                    height: 10px;
                    display: inline-block;
                    }

ul.sub_folder{
    margin-left:15px;
    padding:0;
    list-style:none;
    font-size: 12px;

}               

            ul.sub_folder li{
                margin:0;
                line-height: 20px;
                display:block;
                cursor:pointer;
            }

                ul.sub_folder li.file span.name{
                    background:url("/larea/site_images/file.png") left no-repeat;
                    padding-left: 20px;
                }

                ul.sub_folder li.dir span.name{
                    margin-left:5px;
                    background:url("/larea/site_images/folder.png") left no-repeat;
                    padding-left: 20px;
                }
                    ul.sub_folder li.dir span.pin{
                    background:url("/larea/site_images/folder_arrow.png") left no-repeat;
                    width:10px;
                    height: 10px;
                    display: inline-block;
                    }   

    </style>

    </head>
        <body> 
            <ul id="storage_list">
                <li class="dir"><span class="pin"></span><span class="name">omg</span>
                    <ul class="sub_folder">
                        <li class="dir"><span class="pin"></span><span class="name">omg</span></li>
                        <li class="file"><span class="pin"></span><span class="name">omg2</span></li>
                    </ul>
                </li>
                <li class="file"><span class="pin"></span><span class="name">omg2</span></li>
            </ul>

it happens that ALL the <li> (whatever the class of the li) inside <ul class="sub_folder"> get the same style as <li class="dir"> inside <ul id="storage_list"> ... they all get the .dir class. Why?

EDIT: I did it! Is there a way to vote or reward myself? It's the third time I solve my own problems when nobody answers :) Kid开发者_Go百科ding. For community spirit the problem was that since the class .sub_folder was inside the parent #storage_list and a rule for the the sub <li> was set, all the <li> (no matter if inside another ) were getting the same styles also. The solution was to use > so that ONLY the parent <li> will get the specific class and not the children, grandchildren etc.. So the rule (example) becomes ul#storage_list > li.dir > span.name

Try this:

ul#storage_list > li.dir > span.name
{
    margin-left:5px;
    background:url("/larea/site_images/folder.png") left no-repeat;
    padding-left: 20px;
}