JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
    <div class="folder">
        <div class="foldertitle">.configs</div>
    </div>
    <div class="folder">
        <div class="foldertitle">atd</div>
    </div>
    <div class="folder">
        <div class="foldertitle">backup</div>
    </div>
    <div class="folder">
        <div class="foldertitle">files</div>
    </div>
    <div class="folder">
        <div class="foldertitle">html</div>
    </div>
    <div class="folder">
        <div class="foldertitle">code</div>
    </div>
    <div class="folder">
        <div class="foldertitle">files</div>
    </div>
    <div class="folder">
        <div class="foldertitle">flashfan</div>
    </div>
    <div class="folder">
        <div class="foldertitle">franz</div>
    </div>
    <div class="folder">
        <div class="foldertitle">labs</div>
    </div>
    <div class="folder">
        <div class="foldertitle">modellflugfans</div>
    </div>
    <div class="folder">
        <div class="foldertitle">opencine</div>
    </div>
    <div class="folder">
        <div class="foldertitle">sel</div>
    </div>
    <div class="folder">
        <div class="file ico">favicon.ico</div>
    </div>
    <div class="folder">
        <div class="foldertitle">log</div>
    </div>
    <div class="folder"> 
        <div class="foldertitle">phptmp</div>
    </div>
    <div class="folder">
        <div class="foldertitle">restore</div>
    </div>
    <div class="folder">
        <div class="file forward">.forward</div>
        <div class="file forward">.forward</div>
    </div>
</div>

CSS

.container{
    #height:300px;
    #width:150px;
    #background-color:#eeeeee;
    #overflow:scroll;
}
.folder, .foldertitle, .file{
    line-height:20px;
    padding-left:20px;
    background-position:left center;
    background-repeat:no-repeat;
}
.file,.foldertitle{
    display:block;
    float:none;
    
}

.folder.closed .file, .folder.closed .folder{
    height:0px;
    visibility:hidden;
}
.foldertitle:hover ,.file:hover{
    padding-right:3px;
    cursor:pointer;
    background-color:#bbbbbb;
    border-radius:3px;
}
div.foldertitle.loading, div.file.loading{
    background-image:url(loader.gif);
}
.foldertitle{
    margin-left:-20px;
    background-image:url(folder.png);
}
.file{
    background-image:url(file.png);
}
.file.html{
    background-image:url(html.png);
}
.file.php{
    background-image:url(php.png);
}
.file.jpg{
    background-image:url(jpg.png);
}


.container div *{float:left; display:inline-block; clear:both;}