CSSDesigner 5.0 for Mac was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The actual developer of this Mac application is Romanysoft LAB. The application lies within Developer Tools, more precisely Webmaster Tools.
From the developer:
CSSDesigner is an application that helps you create quickly and easily CSS3 (CSS2) effects. With this program, you can paint just as you would on canvas. You can use different sizes, shapes, and blending modes. You have the ability to adjust the CSS settings to get the look you want.
You may want to check out more software for Mac, such as Boks, Navicat for Oracle or GoodPage, which might be similar to CSSDesigner.