trilium/static/style.css

.note-editable {
    /* This is because with empty content height of editor is 0 and it's impossible to click into it */
    min-height: 400px;
    overflow: scroll;
}

#top-message {
    display: none; /* initial state is hidden */
    background-color: #e0e0e0;
    color: #333;
    padding: 5px;
    border-radius: 10px;
}

#error-message {
    display: none; /* initial state is hidden */
    background-color: red;
    color: white;
    padding: 5px;
    border-radius: 10px;
}

.note-editable p {
    padding: 0;
    margin: 0;
}

ul.fancytree-container {
    width: 290px;
    height: 400px;
    overflow: auto;
    position: relative;
    outline: none !important;
}

span.fancytree-node > span.fancytree-icon {
    background-position: 0 0;
    background-image: url("icons/file.png");
}

span.fancytree-node.fancytree-folder > span.fancytree-icon {
    background-position: 0 0;
    background-image: url("icons/folder.png");
}