app.scss

body {
  color: #fcfcfc;
  font-family: helvetica;
  font-size: 18px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  margin: 0;
  max-height: 100vh;
  overflow: auto;
}

h3 {
  margin: 5px;
  text-align: center;
}

p {
  margin: 0;
  padding: 6px;
  text-align: center;
}

.header {
  color: #333;
  padding: 6px 14px;

  .title {
    font-size: 34px;
  }
}

.mobile-only-header {
  background-color: #3a6a9a;
  padding: 18px;
  padding-bottom: 0;
}

.github-link {
  color: inherit;
  cursor: pointer;
  padding-right: 6px;
  text-decoration: none;

  svg {
    height: 48px;
    width: 50px;
  }

  &.white {
    svg {
      fill: #fff;
    }
  }
}

.content {
  background-color: #3a6a9a;
}

.nav {
  background-color: #eee;
  color: #333;
  cursor: pointer;
  font-size: 16px;
  padding: 8px;

  &.active {
    background-color: #ddd;
    font-weight: 600;
  }
}

.edit-section,
.section {
  padding: 18px;
  padding-bottom: 0;
}

.top-section {
  padding-top: 10px;
}

.button {
  background-color: #fff;
  border-bottom: 1px solid #aaa;
  border-left: 1px solid #aaa;
  border-radius: 4px;
  border-right: 1px solid #aaa;
  border-top: 1px solid #aaa;
  color: #333;
  font-family: monospace;
  font-size: inherit;
  line-height: 1.75;
  margin: 1px;
  position: relative;
  text-align: center;

  &.medium {
    min-width: 80px;
    width: 80px;
  }

  &.large {
    min-width: 145px;
    width: 145px;
  }

  &.xlarge {
    min-width: 185px;
    width: 185px;
  }
}

.edit-me {
  background-color: #ddd;
  color: #333;
  font-family: monospace;
  font-size: 16px;
  max-width: 100vw;
  overflow: auto;
  padding: 8px;

  [data-element-hbox] {
    min-height: 30px;
  }
}

[data-element-centered].floating-area {
  background-color: #ddd;
  min-height: 100px;
}

.hover-me {
  color: #111;
  cursor: inherit;
  font: inherit;
  padding: 10px;
  transform: translate(0);
}

.custom-popover-css {
  background-color: #fff;
  border: 1px solid #ddd;
  color: #333;
  padding: .5rem 1rem;
  position: relative;

  &.ember-attacher-fill {
    background-color: transparent;
    overflow: hidden;
  }

  > div[x-circle] {
    background-color: #fff;
    border-radius: 50%;
    left: 50%;
    opacity: 0;
    overflow: hidden;
    position: absolute;
    transition: all ease-out;
    width: 120%;
    width: calc(100% + 2rem);
    will-change: transform;
    z-index: -1;

    &::before {
      content: '';
      padding-top: 100%;
      padding-top: calc(75% + 2rem);
      float: left;
    }
  }

  > div[x-arrow] {
    background-color: #fff;
    height: 10px;
    position: absolute;
    width: 10px;
    z-index: -1;
  }
}

.no-wrap {
  white-space: nowrap;
}

.underlined {
  border-bottom: 2px dotted #999;
}

@media (max-width: 400px) {
  .button.xlarge {
    min-width: 160px;
    width: 160px;
  }

  .edit-me,
  .nav {
    font-size: 15px;
  }

  .edit-section {
    padding-left: 0;
    padding-right: 0;
  }
}

@media (max-width: 331px) {
  .edit-me,
  .nav {
    font-size: 14px;
  }
}

[data-element-screen] {
  position: relative;
  min-height: 1px;
  box-sizing: border-box;
  display: block;
  width: 100%;
  min-height: 100vh;
}

[data-element-page] {
  position: relative;
  min-height: 1px;
  box-sizing: border-box;
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-flex-direction: column;
  flex-direction: column;
  -webkit-box-flex: 1;
  -moz-box-flex: 1;
  -webkit-flex: 1 0 auto;
  -ms-flex: 1 0 auto;
  flex: 1 0 auto;
  max-width: 100vw;
  min-width: 100vw;
  min-height: 100vh;
}

[data-element-centered] {
  position: relative;
  min-height: 1px;
  box-sizing: border-box;
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-flex: 1;
  -moz-box-flex: 1;
  -webkit-flex: 1 0 auto;
  -ms-flex: 1 0 auto;
  flex: 1 0 auto;
  -webkit-box-pack: center;
  -moz-box-pack: center;
  -ms-flex-pack: center;
  -webkit-justify-content: center;
  justify-content: center;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;

  &.flexi-fit {
    -webkit-box-flex: 0;
    -moz-box-flex: 0;
    -webkit-flex: none;
    -ms-flex: none;
    flex: none;
  }

  .justify-around {
    -webkit-box-pack: distribute;
    -moz-box-pack: distribute;
    -ms-flex-pack: distribute;
    -webkit-justify-content: space-around;
    justify-content: space-around;
  }
}

[data-element-box] {
  position: relative;
  min-height: 1px;
  box-sizing: border-box;
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-flex: 1;
  -moz-box-flex: 1;
  -webkit-flex: 1 0 0px;
  -ms-flex: 1 0 0px;
  flex: 1 0 0px;
  -webkit-flex-direction: column;
  flex-direction: column;

  .fit-xs {
    -webkit-box-flex: 0;
    -moz-box-flex: 0;
    -webkit-flex: none;
    -ms-flex: none;
    flex: none;
  }

  &.flexi-fit {
    -webkit-box-flex: 0;
    -moz-box-flex: 0;
    -webkit-flex: none;
    -ms-flex: none;
    flex: none;
  }

  @media (min-width: 512px) {
    &.horizontal-lm {
      -webkit-flex-direction: row;
      flex-direction: row;
    }
  }

  @media (min-width: 512px) {
    &.hidden-lm {
      display: none;
    }
  }
}

[data-element-vbox] {
  position: relative;
  min-height: 1px;
  box-sizing: border-box;
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-flex: 1;
  -moz-box-flex: 1;
  -webkit-flex: 1 0 auto;
  -ms-flex: 1 0 auto;
  flex: 1 0 auto;
  -webkit-flex-direction: column;
  flex-direction: column;

  .fit-lm {
    -webkit-box-flex: 0;
    -moz-box-flex: 0;
    -webkit-flex: none;
    -ms-flex: none;
    flex: none;
  }
}

[data-element-hbox] {
  position: relative;
  min-height: 1px;
  box-sizing: border-box;
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-flex: 1;
  -moz-box-flex: 1;
  -webkit-flex: 1 0 auto;
  -ms-flex: 1 0 auto;
  flex: 1 0 auto;
  -webkit-flex-wrap: wrap;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  -webkit-flex-direction: row;
  flex-direction: row;

  &.flexi-fit {
    -webkit-box-flex: 0;
    -moz-box-flex: 0;
    -webkit-flex: none;
    -ms-flex: none;
    flex: none;
  }
}