.blockbutton {
    border: 1px solid var(--color-admonition-title--seealso);
    background-color: var(--color-admonition-title-background--seealso);
    padding: 5px;
    text-align: center;
    border-radius: 5px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}