.custom-button {
  border: none;
  border-image: none;
  cursor: pointer;
}

.custom-button:focus {
  outline: none;
}

/* tabbed */
.tabbed {
  padding-top: 8px;
}

.tabbed-headings {
  display: flex;
  flex-wrap: wrap;
}

.tabbed-content [data-tab]:not(:first-child) {
  display: none;
}

.tabbed-control {
  box-sizing: border-box;
  margin: 0 1px 0 0;
  padding: 3px 15px;
  cursor: pointer;
  font-size: 120%;
  flex-grow: 1;
}

.tabbed-content {
  box-sizing: border-box;
  padding: 10px;
}

.tabbed-hamburger {
  display: none;
}

.tabbed .mobile-arrow {
  display: none;
}

.overlay-darken {
  display: none;
  background: #FFFFFF;
  color: black;
  -webkit-border-radius: 15px;
  -moz-border-radius: 15px;
  border-radius: 15px;
  padding: 20px;
  border-radius: 15px;
  -webkit-box-shadow: 0px 0px 15px 2px #888888;
  box-shadow: 0px 0px 15px 2px #888888;
}


/* https://www.digital.ink/blog/mobile-responsive-youtube-embeds/ */
.embed-container {
  position: relative;
  padding-bottom: 56.25%;
  overflow: hidden;
  max-width: 100%;
  height: auto;
}

.embed-container iframe,
.embed-container object,
.embed-container embed {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/* display */
.display-grid {
  display: grid;
}

.display-flex {
  display: flex;
  flex-wrap: wrap;
}

.display-flex-wrap-center {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}