index.css

:root {
    --root-font-size: 12px;
    --bg: #fafafa;
}

/** Reset */
html, body, ul, h1, h2, h3, h4, a, canvas {
    margin: 0px;
    padding: 0px;
    color: var(--text-color);
}

html, body {
    font-family: Roboto, -apple-system, BlinkMacSystemFont, 'Segoe UI', Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    font-size: var(--root-font-size);
    background: var(--bg);
    height: 100%;
    width: 100%;
    overflow: hidden;
}

*, body, button, input, select, textarea, canvas {
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    outline: 0;
}

#title {
    margin-left: 10px;
    font-size: 18px; 
    font-weight: 700;
}

#navbar {
    position: absolute;
    top: 0;
    left: 0;
    display: inline-flex;
    justify-content: space-between;
    align-items: center;
    background-color: #ccaf56; 
    width: 100%;
    height: 40px;
}

#contextMenu {
    padding-top: 3px;
    background-color: #ccaf56;
    border: solid;
    border-width: 2px;
    border-color: #ccaf56;
    border-radius: 5px;
    width: 11rem; 
    position: absolute; 
    visibility: hidden;
}

.contextMenuHeader {
    max-width: fit-content;
    margin-left: auto;
    margin-right: auto;
    font-size: 12px;
    font-weight: bold;
    padding-bottom: 4px;
}

.ctx-menu-btn {
    padding-left: 20px;
    padding-right: 20px;
    width: 100%;
}

.button {
    border: 1px solid #ccaf56;
    padding: 4px;
    text-align: center;
    text-decoration: none;
    font-size: 12px;
    cursor: pointer;
}

.button:hover {
    background-color: #ffda6b;
}

#sidebar { 
    height: calc(100vh - 40px);
    position: absolute !important;
    width: 300px;
    top: 40px;
    background-color:#cecece;
    overflow-y: scroll;
    scrollbar-color: #ccaf56 #cecece;
    scrollbar-width: thin;
    border-right: solid 3px #ccaf56;
}

.bar-item {
    display: block;
    padding: 8px 16px;
    text-align: left;
    border: none;
    white-space: normal;
    float: none;
    outline: 0;
}

.radio {
    width: 20px;
    height: 20px;
    vertical-align: middle;
}

.radio-label {
    font-size: 14px;
    vertical-align: middle;
}