Working with background images in email is challenging for a number of reasons. Email clients have limited support for CSS background images and for some of the properties for controlling how the background image appears—especially CSS3 properties.
The cellspacing attribute specifies the space, in pixels, between cells. Cell padding is the space between cell borders and the content within a cell. To set cell padding in HTML, use the style attribute. The style attribute specifies an inline style for an element. The attribute is used with the HTML \