.button__version01-red {
    margin-top: 20px;
    padding: 15px 20px;
    border-radius: 5px;
    background: var(--red); 
    color: #fff;
    font-size: 16px;
    border: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    cursor: pointer;
    transition: 0.2s;
    text-transform: uppercase;
}
    .button__version01-red:hover {
        background: var(--red-hover);
    }