vue-calculator.css

body {
  background: #085078;  /* fallback for old browsers */
  background: -webkit-linear-gradient(to right, #85D8CE, #085078);  /* Chrome 10-25, Safari 5.1-6 */
  background: linear-gradient(to right, #85D8CE, #085078); /* W3C, IE 10+/ Edge, Firefox 16+, Chrome 26+, Opera 12+, Safari 7+ */
}

.calculator {
  width: 450px;
  padding: 20px;
  border-radius: 5px;
  margin: 12% 30%;
  background-color: hsl(0, 0%, 20%);


}

.input {
  width: 400px;   height: 50px;
  border-radius: 0px;
  border: 1px solid hsl(0, 0%, 0%);
  background-color: #333333;
  color: #d9d9d9;
  padding: 0 5px 0 5px;
  margin: 0 0px 10px 0px;
  font-size: 30px;
}

.button {
  margin: 3px;
  width: 63px;
  border: 1px solid hsl(0, 0%, 5%);
  height: 25px;
  border-radius: 4px;
  color: hsl(0, 0%, 85%);
  background-color: hsl(0, 0%, 10%);
  cursor: pointer;
  outline: none;
}

.basic-mode {
  width: 415px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-evenly;
}

.complex-mode {
  width: 415px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}

.equal-sign {
  background-color: hsl(120, 100%, 25%);
  width: 133px;
}

.toggle-button {
  border: none;
  background-color: hsl(0, 0%, 20%);
  cursor: pointer;
  outline: none;
}

#app {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}

button::-moz-focus-inner {
  border-color: transparent;
}