*{
    margin: 0px;
    padding: 0px;
    box-sizing: border-box;
    font-family: 'Courier New', Courier, monospace;
}
body{
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(45deg,#0a0a0a,#3a4452);
}
.calculator{
    border: 1px solid rgb(134, 132, 132);
    border-radius: 5px;
    margin: 23px;
    box-shadow: 0px 3px 15px rgba(113,115,119,0.5);
}
input{
    border: none;
    background: transparent;
    color: white;
    font-weight: bold;
    font-size: 30px;
    box-shadow: 0px 3px 15px rgba(84,84,84,0.1);
    text-align: right;
    padding: 23px;
    margin: 27px;
    /* width: 100%; */
}
input::placeholder{
    color: white;
}
button{
    width: 4.2rem;
    height: 4.2rem;
    border: none;
    padding: 5px;
    margin: 13px;
    font-size: 23px;
    border-radius: 50%;
    background: transparent;
    color: white;
    font-weight: bold;
    box-shadow: -8px -8px 15px rgba(255,255,255,0.1);
    cursor: pointer;
}
.buttons{
    text-align: center;
}
.eqlbtn{
    background-color: #fb7c14;
}
.sign{
    color: greenyellow;
}