#cal
{
    margin:50px auto 50px;
    height: auto;
    width:60%;
    border:2px solid #E2E0E0;
    padding:25px 15px 15px;
    background-color: #E2E0E0;
    border-radius: 10px;
    box-sizing: border-box;
}
.cal-name
{
    margin-bottom:  20px;
    text-align: center;
    font-size: 2rem;
    text-transform: uppercase;
    color:white;
    background-color: black;
    padding: 10px 0px;
}

#cal-display
{
    width: 100%;
    height: 120px;
    margin-bottom: 20px;
    background-color: #F5F5F5;
    font-size: 2.2rem;
    font-weight: bold;
    text-align: right;
    color:skyblue;
}



.button-display
{
    width:100%;
    height:auto;
    /* border: 1px solid black; */
    box-sizing: border-box;
    display:flex;
    flex-wrap: wrap;
    padding:0 2px;
    justify-content: space-between;

}

.button
{
    margin:2px 0;
    background-color: white;
    width:24.5%;
    height: 80px;
    display:flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    text-align: center;
    font-size: 1.5rem;
    cursor: pointer;
    font-weight: bold;
    /* box-sizing: border-box;
    padding-top:25px; */
}

.button.zero
{
    width: 49.6%;
}

.button.operator
{
    background-color: #C14444;
}

.button.operator:hover
{
    background-color:brown;
}
.button:hover
{
    background-color: #FFC877;
}