body {
    width: 100vw;
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: rgb(233, 236, 239)
}

.calculatorElement {
    width: 650px;
    height: 380px;
    background-color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 0 10px 4px rgb(214, 212, 212);
}

.calculatorContainer {
    display: revert;
}

.btn {
    width: 110px;
    height: 38px;
    background-color: aliceblue;
    border-style: solid;
    border-width: 1px;
    border-color: rgb(196, 194, 194);
    border-radius: 25px;
    box-shadow: 0 0 4px 1px lightgray;
    font-size: 20px;
}

.btn:active {
    background-color: rgb(228, 229, 230)
}

.btnRowsCintainer,
.top_boxContainer {
    width: 640px;
    height: 54px;
    background: none;
    margin-top: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.top_boxContainer {
    margin-bottom: 20px;
}

#top_box {
    width: 600px;
    height: 40px;
    background-color: aliceblue;
    border-style: solid;
    border-width: 2px;
    border-color: rgb(140, 139, 161);
    border-radius: 5px;
    box-shadow: 0 0 4px 1px gray;
    text-align: right;
    font-size: 20px;
    padding-right: 7px;
}

#top_box:focus {
    border-color: rgb(95, 84, 253);
    outline: none;
    box-shadow: 0 0 4px 1px rgb(95, 84, 253);
}