css/styles.css

body {
    padding: 0 0em;
    height: 100%;
    background: #303030;
}

.sidebar-left {
    float: left;
    width: 10%;
}

.sidebar-left h1 {
    color: white;
    font-size: 16px;
    padding: 0 1.5em;
}

.sidebar-left hr {
    border: 2px solid white;
}

#annotations-container h2 {
    color: white;
    padding: 0 0.5em;
    font-size: 14px;
}

#annotations-container hr {
    border: 0.25px solid white;
}

#wsi-canvas {
    float: left;
    width: 80%;
    height: 100%;
    background: white;
}

.sidebar-right {
    float: right;
    width: 10%;
}

.sidebar-right h2 {
    color: white;
    padding: 0 0.5em;
    font-size: 14px;
}

.sidebar-right hr {
    border: 0.25px solid white;
}

.sidebar-right .position,
.sidebar-right .zoom {
    color: white;
    padding: 0 0.5em;
    font-size: 14px;
}

.annotation-item {
    color: white;
    padding: 10px;
    border: 1px solid white;
    margin-top: 10px;
    cursor: pointer;
    font-size: 12px;
}

svg.a9s-annotationlayer .a9s-selection .a9s-inner,
svg.a9s-annotationlayer .a9s-annotation .a9s-inner {
    stroke-width: 4;
    stroke: blue;
    fill: rgba(0, 0, 255, 0.4);
}