style.css

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: "Open Sans", sans-serif;
  height: 100%;
  scroll-behavior: smooth;
}

h1 {
  margin: 0;
  font-size: 6em;
  text-transform: uppercase;
  color: #fff;
}

h3 {
  color: #504f4d;
  font-size: 1.8em;
  font-family: "Gloria Hallelujah", cursive;
}

.visualization > p {
  color: #504f4d;
  font-weight: 100;
  font-size: 1rem;
  border: 1px dotted #ddd;
  padding: 2rem;
}

.banner-img {
  background-image: url(back2.jpg);
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  height: 100vh;
  /* filter: blur(5px); */
}

.banner-txt {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  color: #fff;
  width: 75%;
  z-index: 5;

  background-color: rgba(0, 0, 0, 0.6);
  text-align: center;
  font-weight: 100;
  border: 10px solid #fff;
  padding: 2em;
}
.banner-txt > a {
  color: #ddd;
  text-decoration: none;
  font-size: 2em;
}
.hidden {
  display: none;
}

.box {
  padding: 1em;

  flex: 1;
  width: 100%;
}

.knobs {
  display: flex;
  justify-content: stretch;

  width: 100%;
}

.visualization {
  min-height: 50vh;
  background-color: #fff;
  font-size: 1.5em;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  padding: 2em;
  margin: 0 auto;
}
.visualization > hr {
  color: #fff;
}

.chart {
  min-height: 80vh;
  width: 100%;
  background-color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #d5795f;
  padding: 2em;
}

button {
  background-color: white;
  border: 1px solid #d5795f;
  border-radius: 5px;
  color: #d5795f;
  width: 300px;
  margin: 4em;

  font-size: 1.5em;
}

button:hover {
  background-color: #eee;
}

canvas {
  background-color: white;
  min-height: 400px;
  width: 100%;
}

.container {
  margin: 0 auto;
  max-width: 960px;

  padding: 0 2em;
}

footer {
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  font-size: 1.6rem;
  flex-direction: column;
  text-align: center;
  background-color: #ffa600;
  border-top: 5px dotted black;
}
footer h5 a {
  text-decoration: none;
  color: inherit;
  font-size: 1.5em;
  font-family: "Gloria Hallelujah", cursive;
  display: flex;
}
footer .small {
  font-weight: 100;
  font-size: 0.8em;
}
footer h5 a:hover {
  text-decoration: none;
  color: #fff;
}

.arrow {
  font-size: 2rem;
  color: #ffa600;
}

.arrow a {
  color: #ffa600;
}

footer > h5 {
  display: inline-flex;
}

/* select pure styles */
.select-wrapper {
  margin: auto;
  max-width: 600px;
  width: calc(100% - 40px);
}

.select-pure__select {
  align-items: center;
  background: #f9f9f8;
  border-radius: 4px;
  border: 1px solid rgba(0, 0, 0, 0.15);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.04);
  box-sizing: border-box;
  color: #363b3e;
  cursor: pointer;
  display: flex;
  font-size: 16px;
  font-weight: 500;
  justify-content: left;
  min-height: 44px;
  padding: 5px 10px;
  position: relative;
  transition: 0.2s;
  width: 100%;
}

.select-pure__options {
  border-radius: 4px;
  border: 1px solid rgba(0, 0, 0, 0.15);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.04);
  box-sizing: border-box;
  color: #363b3e;
  display: none;
  left: 0;
  max-height: 221px;
  overflow-y: scroll;
  position: absolute;
  top: 50px;
  width: 100%;
  z-index: 5;
}

.select-pure__select--opened .select-pure__options {
  display: block;
}

.select-pure__option {
  background: #fff;
  border-bottom: 1px solid #e4e4e4;
  box-sizing: border-box;
  height: 44px;
  line-height: 25px;
  padding: 10px;
}

.select-pure__option--selected {
  color: #e4e4e4;
  cursor: initial;
  pointer-events: none;
}

.select-pure__option--hidden {
  display: none;
}

.select-pure__selected-label {
  background: #5e6264;
  border-radius: 4px;
  color: #fff;
  cursor: initial;
  display: inline-block;
  margin: 5px 10px 5px 0;
  padding: 3px 7px;
}

.select-pure__selected-label:last-of-type {
  margin-right: 0;
}

.select-pure__selected-label i {
  cursor: pointer;
  display: inline-block;
  margin-left: 7px;
}

.select-pure__selected-label i:hover {
  color: #e4e4e4;
}

.select-pure__autocomplete {
  background: #f9f9f8;
  border-bottom: 1px solid #e4e4e4;
  border-left: none;
  border-right: none;
  border-top: none;
  box-sizing: border-box;
  font-size: 16px;
  outline: none;
  padding: 10px;
  width: 100%;
}

footer a {
  text-decoration: none;
  color: white;
}

/* RESPONSIVE */

@media only screen and (max-width: 720px) {
  .visualization {
    padding: 0;
  }
  footer {
    display: flex;
  }

  .banner-img {
    height: 30vh;
    /* filter: blur(5px); */
  }

  .banner-txt {
    position: absolute;
    top: 15%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    color: #fff;
    width: 75%;
    z-index: 5;

    background-color: rgba(0, 0, 0, 0.6);
    text-align: center;
    font-weight: 100;
    border: 10px solid #fff;
    padding: 2em;
  }
  .banner-txt > a {
    color: #ddd;
    text-decoration: none;
    font-size: 2em;
  }

  h1 {
    margin: 0;
    font-size: 1.5em;
    text-transform: uppercase;
    color: #fff;
  }

  #viz > h3 {
    display: none;
  }
  .banner-txt > p {
    display: none;
  }
  .knobs {
    display: flex;
    flex-direction: column;
  }
}