* {
  font-family: "Roboto", Helvetica, Sans-Serif;
}

article {
  margin: auto;
  padding-top: 8px;
  border-top: 1px solid #ccc;
  max-width: 600px;
}

.yourButton {
  border: 0;
  outline: 0;
  width: 120px;
  height: 48px;
  position: relative;
  background: #1a8cf3;
  color: white;
  border-radius: 12px;
  font-weight: 400;
  font-size: 20px;
  vertical-align: bottom;
  transition: box-shadow 0.25s;
  cursor: pointer;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  border: 2px solid transparent;
  transition: border 0.15s;
  margin-bottom: 8px;
}
.yourButton .rippleJS {
  border-radius: 10px;  /** parent border-radius minus border width */
}
.yourButton .rippleJS .ripple {
  background: white;
}
.yourButton:focus {
  outline: none;
  border: 2px solid rgba(33, 33, 33, 0.5);
}
.yourButton.alt {
  background: #ff941a;
}

.items {
  box-shadow: 0 2px 5px 0 rgba(0, 0, 0, 0.26);
  background: white;
  display: inline-block;
  width: 240px;
  text-align: left;
}

.item {
  padding: 8px;
  position: relative;
}

.fillable {
  width: 200px;
  height: 200px;
  display: inline-block;
  position: relative;
  line-height: 200px;
  margin: 8px;
  text-align: center;
}
.fillable .rippleJS .ripple {
  background: red;
}

.optHolder {
  position: relative;
  width: 32px;
  height: 32px;
  display: inline-block;
  vertical-align: bottom;
  color: #1a8cf3;
}

.optHolder input[type="checkbox"] {
  visibility: hidden;
  position: relative;
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  border: 0;
  color: inherit;
}
.optHolder input[type="checkbox"]::before {
  content: "\2714";
  text-shadow: 1px 1px 0 white, 0px -1px 0 white;
  text-align: center;
  display: block;
  width: 32px;
  line-height: 32px;
  font-size: 24px;
  visibility: visible;
  transition: all 0.25s;
  opacity: 0.0;
  transform: rotate(120deg);
}
.optHolder input[type="checkbox"]:checked::before {
  opacity: 1.0;
  transform: rotate(0deg);
}
.optHolder input[type="checkbox"]::after {
  content: "";
  border: 1px solid currentColor;
  border-radius: 3px;
  width: 14px;
  height: 14px;
  position: absolute;
  left: 50%;
  top: 50%;
  margin-top: -8px;
  margin-left: -8px;
  display: inline-block;
  visibility: visible;
  z-index: -10;
}