Own CSS attribute to links are killed

This has been fixed in 2.2. Pushing it out shortly.

works fine now, thank you, Jorge!

This seems to happen with version 2.2.3 on WordPress 4.4.2. I have the following class that is stripped from HTML when this plugin is enabled: class=”button large red”. And the CSS …

a.button.large {
    background-color: #303236;
    border-radius: 4px;
    color: #fff;
    font-size: 18px;
    line-height: 24px;
    padding: 16px 32px;
    text-decoration: none;
}

a.button.red {
    background-color: #e14d43!important;
    border: 1px solid #a8271e!important;
    color: #fff!important;
}

Seems not to be resolved
https://www.ads-software.com/support/topic/class-conflict?replies=1