Why is it invalid to set the cell height of a table using css? _html/css_WEB-ITnose

.title
{
background:url(http://www.tzknj.cn/Skin/10/head_bg.GIF);height:35;FONT-SIZE: 12pt;

}
The above is the css for setting the cells in the table. If this is placed at the top, the height will be valid. If it is placed between , the height of the cell will be invalid. , I don’t know why this is, light expert answer

Reply to discussion (solution)

background:url(http://www.tzknj.cn /Skin/10/head_bg.GIF);height:35 px;FONT-SIZE: 12pt;