.heading{
    padding: 10px;
    border: 2px solid blue;
    border-radius: 9px;
    text-align: center;
    background-color: aquamarine;
}

.cal_body{
    align-self: auto;
    margin-inline: 150px;
    border: 3px solid green;
    padding: 10px;
    border-radius: 9px;
    background-color: yellow;   
}

.input_box{
    display: flex;
    justify-content: center;
    border-radius: 5px;
}

.row{
    padding: 5px;
    vertical-align: middle;
    display: flex;
    align-items: center;
    justify-content: center;
}

.button{
    padding:20px;
    background-color: blueviolet;
    color: yellowgreen;
    border-radius: 9PX;
}