style.css

@import url('https://fonts.googleapis.com/css2?family=Noto+Serif:ital,wght@0,400;0,700;1,400;1,700&display=swap');

.container-fluid {
  max-width: 768px;
}

p, ul, ol {
  font-size: 18px;
  line-height: 1.55em;
}

p {
  font-family: 'Noto Serif', serif;
}

h4 {
  text-align: center;
}

img {
  max-width: 100%;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

figcaption {
  text-align: center;
}

footer {
  font-size: 0.8em;
  line-height: 1.3em;
  padding-top: 0.5em;
  margin-top: 0.5em;
}


/* Rendered result text */

.shiny-text-output, .shiny-bound-output {
  text-align: center;
}

/* Shiny widgets */
/* https://stackoverflow.com/questions/31538767/how-to-change-shiny, -widget-colour */

.irs-bar {
  background: #2c3e50;
  border: 1px solid #2c3e50;
}

.irs-bar-edge {
  background: #2c3e50;
  border: 1px solid #2c3e50;
}

.irs-single{
  background: #2c3e50;
}


/* Slider position */
.form-group, .shiny-input-container {
  margin: auto;
}


div.sticky {
  position: relative;
  background-color: white;
  top: 0;
  padding: 10px;
  font-size: 20px;
}

/* sticky only when browser supports */
@supports (position: sticky) {
  div.sticky {
    z-index: 9999;
    position: sticky;
  }
}