*{
    margin: 0;
    padding:0;
    box-sizing: border-box;
    font-family: 'poppins',sans-serif;
}
body{
    display:flex;
    align-items: center;
    justify-content: center;
    background:lightblue;
    min-height: 100vh;
}
.Calculator{
    position: relative;
    display: grid;
}
.Calculator .value{
    grid-column: span 4;
    height: 100px;
    text-align: right;
    border-radius:15px;
    margin-bottom: 10px;
    outline: none;
    padding: 10px;
    font-size: 18px;
}
.Calculator span{
    display: grid;
    width: 60px;
    height: 60px;
    color: #fff;
    background: #1799cc;
    place-items: center;
    border: 1px solid rgba(0,0,0,0.1);
    border-radius: 15px;
    cursor: pointer;
}
.Calculator span:active{
    background: black;
}
.Calculator span.clc{
    grid-column: span 2;
    width: 120px;
    background:rgb(68, 25, 114);
}
.Calculator span.eql{
    grid-column:span 2;
    width: 120px;
    background:rgb(68, 25, 114);
}
.Calculator span.pls{
    grid-row: span 2;
    height:120px;
    background:rgb(68, 25, 114);
}