html {
    display: -ms-grid;
    display: grid;
    min-height: 100%;
}

body {
    display: -ms-grid;
    display: grid;
    background: #231278;
    font-family: "Lato", sans-serif, sans-serif;
    text-transform: uppercase;
}

.container {
    align-items: center;
    text-align: center;
    position: relative;
    margin: auto;
    overflow: hidden;
    width: 780px;
    height: 620px;
    background: #804419;
    -webkit-box-shadow: 5px 5px 15px rgba(186, 126, 126, 0.5);
    box-shadow: 5px 5px 15px rgba(186, 126, 126, 0.5);
    border-radius: 10px;
}

table {
    margin: auto;
    margin-top: 10px;
    height: 450px;
    width: 550px;
    box-shadow: black;
}

input {
    width: 33rem;
    height: 3rem;
    border-radius: 10px;
    border: none;
    box-shadow: 5px 5px 15px rgba(186, 126, 126, 0.5);
    font-size: 40px;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: #b88e04;
    padding: 10px;
    text-align: right;
}

.heading {
    color: #4E4E4E;
    margin-top: -5px;
    font-family: Neucha;
}

.button-num {
    background: #F7959D;
    padding: 10px;
    display: inline-block;
    outline: 0;
    border: 0;
    margin: -1px;
    width: 8rem;
    height: 5rem;
    border-radius: 2px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #F5F5F5;
    cursor: pointer;
    font-size: xx-large;
    box-shadow: 5px 5px 15px rgba(233, 181, 181, 0.5);
}

.button-num:hover {
    background: #ff9fa7;
    -webkit-transition: all .4s ease-in-out;
    transition: all .4s ease-in-out;
}

.button-ops {
    background: #ff92c5;
    padding: 10px;
    display: inline-block;
    outline: 0;
    border: 0;
    margin: -1px;
    width: 8rem;
    height: 5rem;
    border-radius: 2px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #F5F5F5;
    cursor: pointer;
    font-size: x-large;
    box-shadow: 5px 5px 15px rgba(255, 212, 212, 0.5);
}

.button-ops:hover {
    background: #f573b0;
    -webkit-transition: all .4s ease-in-out;
    transition: all .4s ease-in-out;
}

.button-eql {
    background: #ff9077;
    padding: 10px;
    display: inline-block;
    outline: 0;
    border: 0;
    margin: -1px;
    width: 8rem;
    height: 5rem;
    border-radius: 2px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #F5F5F5;
    cursor: pointer;
    font-size: x-large;
}

.button-eql:hover {
    background: #ffcc24;
    -webkit-transition: all .4s ease-in-out;
    transition: all .4s ease-in-out;
}