obsidian-web/resources/css/main.css

*{
    border:  0;
    margin:  0;
    padding: 0;
}

a, a:visited {
    color: white;
    text-decoration: none;
}

body {
    position: relative;
    background: #151515;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-size: 12px;
}

#err {
    margin: auto;
    width: 200px;
    padding: 5px;
    text-align: center;
    background: red;
    color: white;
}

#loading {
    display: none;
    position: fixed;
    padding: 50px 100px 50px 100px;
    border: 1px solid white;
    background: #333;
    color: white;
    top: 100px;
    left: 40%;
}

.menu_title {
    margin: 0;
    padding: 2px;
    border: 1px solid black;
    background: #444;
    color: white;
    text-transform: uppercase;
    font-size: 11px;
    font-weight: bold;
}

.menu_item a,
.menu_item a:visited {
    color: #bbb;
    font-style: none;
    text-decoration: none;
}

.menu_item {
    padding: 2px;
    margin: 5px;
}

.menu_item:hover {
    background: #666;
}

.menu_item:hover a, 
.menu_item:hover a:visited {
    color: white;
}

.content_title {
    margin: auto;
    padding: 20px;
}

.content_title,
.content_title a,
.content_title a:visited {
    font-size: 30px;
    font-style: italic;
    color: white;
}

.content_title a:hover {
    text-decoration: underline;
}

.thumb {
    text-align: center;
    position: relative;
}

.thumb img {
    max-width: 90%;
    max-height: 90%;
    border: 2px solid black;
}

.thumb:hover img {
    border-color: yellow;
    cursor: pointer;
}

#breadcrumbs {
    background: black;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    -webkit-box-shadow: rgb(0, 0, 0) 0px 0px 8px 2px;
    box-shadow: 0 0 8px black;
    z-index: 100;
}


#content {
    margin-top: 80px;
    padding: 20px;
    overflow: auto;
}

#menu {
    visibility: hidden;
    position: absolute;
    left: 0px;
    width: 200px;
    top: 0px;
    bottom: 0px;
    bottom: 0;
    background: #333;
    overflow:auto;
}

#dirs, #thumbs {
    text-align: center;
    margin: auto;
}

#viewer {
    display: none;
    position: fixed;
    top: 150px;
    left: 0;
    right: 0;
    text-align: center;
    height: 50%;
}

#viewer img {
    max-height: 100%;
    max-width: 80%;
    border: 1px solid black;
    -webkit-box-shadow: rgb(0, 0, 0) 0px 0px 8px 2px;
    box-shadow: 0 0 8px black;
}

.thumb {
    display: inline-block;
    width: 250px;
    height: 160px;
    text-align: center;
    margin: 0px 1px 10px 1px;
}

.thumb img {
    -webkit-box-shadow: rgb(0, 0, 0) 0px 0px 8px 2px;
    box-shadow: 0 0 8px black;
}

.folder {
    display: inline-block;
    position: relative;
    width: 300px;
    height: 160px;
    background: blue;
    margin: 20px;
    -webkit-box-shadow: rgb(0, 0, 0) 0px 0px 8px 2px;
    box-shadow: 0 0 8px black;
    background-size: contain;
    cursor: pointer;
    border: 2px solid black;
}

.folder:hover {
    border: 2px solid rgb(80, 140, 200);
}

.folder .title {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 3px;
    background: rgba(0, 0, 0, 0.5);
    text-align: center;
}

.folder .new {
    position: absolute;
    bottom: 0px;
    left: 0px;
    right: 0px;
    padding: 0px;
    width: 1px;
    height: 1px;
    border-style: solid;
    border-width: 0 50px 50px 0;
    border-color: transparent rgba(255, 255, 57, 0.4) transparent transparent;
    text-align: right;
}

.thumb.new a img {
    border-color: rgb(255, 255, 57);
}