To create a widget:
Open Safari and go to the webpage you want to make into a widget.
Click the “Open this page in Dashboard” button, shown here.
Move the mouse around to select a portion of the webpage. When the portion you want is highlighted, click the mouse button.
If you like, reposition the highlighted portion by dragging it. To resize it, drag the circular handles on the edges of the box.
When you’re done adjusting the outline, click Add.
Dashboard appears, with the web clip displayed.
To customize, move the mouse pointer over the widget’s lower-right corner. When you see an “i” button, click it, and then use these customizing options:
Edges: Choose an edge style by clicking the small pictures of the widget.
Only play audio in Dashboard: If your widget is a sound clip, select this checkbox if you want the sound to stop playing when you dismiss Dashboard.
Edit: To resize the widget or reposition the content, click Edit. Drag the content around to reposition it, and drag the Web Clip’s lower-right corner to resize.