input.big_style {
    padding: 1rem;
    margin-bottom: 15px;
    border-radius: 10px;
    font-size: 2em;
    font-weight: bold;
}

button.custom_style {
    border: none;
    border-radius: 10px;
    background: red;
    padding: 1rem;
    margin-bottom: 15px;
    color: #fff;
    cursor: pointer;
}

button.custom_style:hover{
    border: none;
    background: #ab2f2f;
}

button.custom_style:active{
    border: none;
    background: #7b1212;
}