.container {
    max-width: 400px;
    margin: 0 auto;
    box-shadow: 0px 0px 26px -6px rgba(153, 153, 153, 1);
    background-color: #bbbbbb;
}

.title {
    font-family: 'Arial', 'sans-serif';
    background-color: #424242;
    color: #fff;
    font-weight: 700;
    height: 30px;
    display: flex;
    justify-content: center;
    align-items: center;
}

#result {
    background-color: #e0e0e0;
    height: 50px;
    display: flex;
    justify-content: right;
    align-items: center;
    padding-right: 10px;
    font-size: 24px;
}

table {
    border-collapse: collapse;
    width: 100%;
}

table tr {
    margin-left: 10px;
    margin-right: 10px;
}

table td {
    cursor: pointer;
    width: 80px;
    height: 50px;
    border: 1px solid;
    text-align: center;
    font-weight: 700;
    background-color: #fff;
}

table td:hover {
    background-color: #f2a026;
}

.equals {
    background-color: #009688 !important;
}

table td:last-child:hover {
    background-color: #e95c51 !important;
}