cal1.css

body{
    background-color: rgb(77, 76, 76);
}
.container {
    position:absolute;
    right:0px;
    padding: 10px;
    width: 400px;
}
#display {
   
    text-align: center;
    text-decoration: double;
    font-size: 75px;
    box-shadow: 5px 5px 5px 10px rgb(19, 19, 19);
    font-family: 'Franklin Gothic Medium', 'Arial Narrow', Arial, sans-serif;
}
.buttons {
    position:absolute;
    top:30%;
    left:40%;
    display:grid;
    grid-template-columns: 50px 50px 50px 50px;
}
div.button {
    border-top: 2px solid black;
    border-right: 2px solid black;
}
.button {
    border: 2px solid rgb(255, 254, 254);
    background-color: white;
    line-height: 75px;
    text-align: center;
    font-size: 25px;
    cursor: pointer;
}
#result {
    background-color: rgb(85, 85, 255);
    color: white;
}
#result:hover{
    background-color: rgb(1, 1, 32);
}

.button:hover {
    background-color: #323330;
    color: white;
}
#del{
    background-color: rgb(85, 85, 255);
}
#del:hover{
    background-color:  rgb(19, 19, 24);
}