calculator.github.io/calculator.css at main · Ashishatel/calculator.github.io · GitHub

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body{
    font-family: 'Open Sans' sans serif;
    background-color: black;
}
#container{

    /* background-color: rgba(20, 148, 84, 0.692); */
    background-image: linear-gradient(rgba(0,0,0,0.3),rgba(0,0,0,0.3)), url(abc.jpeg);
    height: 550px;
    width: 1000px;
}
#calculator{
    width: 320px;
    height: 520px;
    background-color: hsl(228, 33%, 97%);
    margin: 0 auto;
    top: 20px;
    position: relative;
    border-radius: 5px;
}
#result{
    height:120px;
    /* background-color: violet; */
}
#history{
    text-align: right;
    height: 20px;
    margin: 0 20px;
    padding-top: 20px;
    font-size: 15px;
    color: #919191;
    /* background-color:yellow; */
}
#output{
    text-align: right;
    height: 60px;
    margin: 10px 20px;
    font-size: 30px;
    /* background-color:red; */

}
#keyboard{
    height:400px;
    /* background-color: skyblue; */
}
.operator, .number, .empty{
    width: 50px;
    height:50px;
    margin:15px;
    float: left;
    border-radius: 50%;
    border-width: 0;
    font-weight: bold;
    font-size: 15px;
}
.number, .empty{
    background-color: hsl(240, 18%, 97%);
}
.number, .operator{
    cursor: pointer;
}
.operator:active, .number:active{
    font-size: 13px;
}
.operator:focus, .number:focus, .empty:focus{
    outline: 0;
}
button:nth-child(4){
	font-size: 20px;
	background-color: #20b2aa;
}
button:nth-child(8){
	font-size: 20px;
	background-color: #ffa500;
}
button:nth-child(12){
	font-size: 20px;
	background-color: #f08080;
}
button:nth-child(16){
	font-size: 20px;
	background-color: #7d93e0;
}
button:nth-child(20){
	font-size: 20px;
	background-color: #9477af;
}