@import url('https://fonts.googleapis.com/css?family=Quicksand:300');


* {
  font-family: 'Rubik', sans-serif; 
  box-sizing: border-box;
  font-family: 'Quicksand', sans-serif;
}

/*-------------------------------------------
            SETTING UP THE UI
--------------------------------------------*/

html {
    height: 100%;
}

.copyright {
  text-align: center;
  margin-top: 20px;
}

/* the calculator body */
.container { 
  background-color: #e0e0e7;
  padding: 0;
  height: 520px;
  width: 320px;
  top: 40px;
  box-shadow: 0px 0px 20px #a6a6a6;
}

#display {
  background-color: #1c191c;
  height: 120px;
  color: white;
  text-align: right;
  font-size: 30px;
  padding: 12.5% 0;
  padding-right: 15px;
  overflow: hidden;
}

/* all buttons */
.btn {
  float: left;
  height: 80px;
  width: 80px;
  border-right: 0.1pt solid #858585;
  border-top: 0.1pt solid #858585;
  border-radius: 0px;
  padding: 9% 0;
  font-size: 19px;
  cursor: pointer;
}

.btn:hover{
  background-color: rgba(0, 0, 0, 0.06);
}

.btn:active{
  background-color: rgba(0, 0, 0, 0.2);
}

.operator, #eval {
  border-right: 0;
  color: #ffffe9; /* almost white */
  background-color: #7fca9f;
  font-size: 26px;
  padding: 7% 0;
}

.operator:hover, #eval:hover{
  background-color: #75ba92;
}

.operator:active, #eval:active{
  background-color: #67a481;
}

/* clear button */
.clear {
  height: 80px;
  width: 240px;
  font-size: 22px;
}

/* zero button */
.zero {
  width: 160px;
}

.dot {
  font-size: 45px;
  padding: 1% 0;
}

/*-------------------------------------------
         END - SETTING UP THE UI
--------------------------------------------*/