styles.css

body {
  --color-back: white;
  --color-title-back: #55887c;
  --color-title: #ffffff;
  --color-theme: #ffc252;
  --color-text: rgb(67, 66, 66);
  --color-icon-front: #55887c;
  --color-toolbar: #ffc252;
  --color-toolbar-button: black;
}

@font-face {
  font-family: "Material Icons";
  font-style: normal;
  font-weight: 400;
  src: url(https://fonts.gstatic.com/s/materialicons/v67/flUhRq6tzZclQEJ-Vdg-IuiaDsNcIhQ8tQ.woff2)
    format("woff2");
}

body {
  font-family: Verdana, Geneva, Tahoma, sans-serif;
  background-color: var(--color-back);
  margin: 0;
}

h1 {
  font-size: large;
  text-align: center;
  background-color: var(--color-title-back);
  color: var(--color-title);
  margin: 0;
  padding: 16px;
  user-select: none;
}

span.icon {
  font-family: "Material Icons";
  display: inline-block;
  font-feature-settings: "liga";
  margin-bottom: 0px;
  color: var(--color-icon-front);
  font-size: 16px;
  vertical-align: sub;
  user-select: none;
}

ul {
  list-style: none;
  padding: 0;
  text-align: center;
  display: flex;
  margin: 5px;
}

form {
  margin: 16px;
  text-align: center;
}

textarea {
  display: block;
  width: 90%;
  margin: 8px auto;
  height: 60px;
  font-size: 16px;
  padding: 10px;
  border: 2px solid var(--color-title-back);
  border-radius: 5px;
  resize: none;
  overflow: hidden;
}

button {
  display: block;
  text-decoration: none;
  background-color: var(--color-toolbar);
  color: var(--color-toolbar-button);
  font-size: 13px;
  padding: 8px 8px;
  line-height: 1;
  margin: 8px 8px;
  font-weight: bold;
  border-radius: 8px;
  border: 2px solid var(--color-icon-front);
  user-select: none;
}

#notes {
  flex-flow: column;
  flex-wrap: nowrap;
  align-items: stretch;
  align-content: center;
  justify-content: space-evenly;
  padding-bottom: 50px;
  color: var(--color-text);
}

#notes li {
  margin-bottom: 16px;
  border-top: 2px dotted var(--color-title-back);
  padding-top: 8px;
}

#toolbar {
  flex-wrap: wrap;
  align-items: stretch;
  align-content: center;
  justify-content: space-evenly;
}

body > #toolbar {
  position: fixed;
  bottom: 0;
  margin: 0;
  width: 100%;
  background-color: var(--color-toolbar);
}

@media (display-mode: standalone), (display-mode: minimal-ui) {
  body > #toolbar {
    padding: env(safe-area-inset-top) env(safe-area-inset-right)
      env(safe-area-inset-bottom) env(safe-area-inset-left) !important;
  }

  #itemInstall {
    display: none;
  }
}