html {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

body {
  margin: 0px;
  padding: 0px;
  width: 100%;
  height: 100%;
  font: bold 16px 'Open Sans', 'Helvetica Neue', 'Helvetica', 'Arial', sans-serif;
  font-weight: 700;
}

::-webkit-scrollbar {
  display: none;
}

::-webkit-scrollbar-thumb {
  display: none;
}

.calc {
  background-color: #fff;
  border: 0;
  margin: 0;
  padding: 0px;
  display: flex;
  flex-direction: column;
  height: 100%;
  width: 200pt;
}

.calc-display, .calc-display:focus {
  flex: 1 1 100%;
  border: none;
  letter-spacing: 1px;
  line-height: 20px;
  margin: 0;
  min-width: 204px;
  overflow: scroll;
  padding: 0 20pt 2pt 20pt;
  width: calc( 100% - 40px );
  text-align: right;
}

.edge-top {
  height: 5px;
  width: 100%;
  z-index: 99;
  position: absolute;
  background: #fff;
}

.edge {
  background: linear-gradient(to bottom, rgba(255,255,255,1) 0%,
                                         rgba(255,255,255,0) 100%);
  height: 20px;
  position: absolute;
  top: 5px;
  width: 100%;
  z-index: 99;
}

hr {
  width: 100%;
  height: 0px;
  border: none;
  border-top: 1px solid #d9d9d9;
  position: relative;
}

.calc .buttons {
  flex: 1 1 100%;
  height: 244px;
  width: 100%;
  min-height: 225px;
  min-width: 244px;
}

.button-row {
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  flex: 1 1 100%;
}

.button-column {
  display: flex;
  flex-direction: column;
  flex-wrap: nowrap;
  flex: 1 1 100%;
}

.actionButton {
  align-items: center;
  justify-content: center;
  font: bold 16px 'Open Sans', 'Helvetica Neue', 'Helvetica', 'Arial', sans-serif;
  cursor: pointer;
  text-align: center;
  color: rgb(202, 202, 202);
  background: linear-gradient(#6B6B6B, #626262);
  box-shadow: inset 1px 1px 0 #636363, inset -1px -1px 0 #141414;
  text-shadow: 2px 2px #222;
  flex: 1 1 100%;
  border: none;
  margin: 0;
  outline: none;
}

.actionButton-0, .actionButton-1, .actionButton-2, .actionButton-3, .actionButton-4, .actionButton-5, .actionButton-6, .actionButton-7, .actionButton-8, .actionButton-9, .actionButton-point {
  background: linear-gradient(#4B4B4B, #424242);
}

.actionButton-div, .actionButton-mult, .actionButton-plus, .actionButton-minus, .actionButton-ac, .actionButton-sign, .actionButton-point, .actionButton-equals {
  font-size: 24px;
}

.actionButton-ac {
  background: linear-gradient(#FF504B, #F8261C);
  font-size: 20px;
}

.actionButton-equals {
  flex: 2 1 200%;
  background: linear-gradient(#6BA0FF, #2C76F8);
  box-shadow: inset 1px 1px 0 #84ACF5, inset -1px -1px 0 #175EDA;
  padding-bottom: 2px;
  padding-top: 2px;
}

.actionButton:active {
  background: linear-gradient(#424242, #4B4B4B);
  box-shadow: inset 1px 1px 0 #141414, inset -1px -1px 0 #636363;
}

.actionButton-ac:active {
  background: linear-gradient(#F8261C, #FF504B);
}

.actionButton-equals:active {
  background: linear-gradient(#2C76F8, #6BA0FF);
}

.actionButton-div:active, .actionButton-mult:active, .actionButton-plus:active, .actionButton-minus:active, .actionButton-sign:active {
  background: linear-gradient(#626262, #6B6B6B);
}

.inner-calc-display {
  bottom: 0;
  position: absolute;
  right: 20pt;
  width: 87%;
}

.calc-display {
  position: relative;
}