我想增加边框和背景图像之间的距离...我试图添加,padding: 20px;但它不起作用.
.Tab1 {
background-image: url("http://dl.dg-site.com/wp-content/themes/aeron/images/dl-products-icons5.jpg");
width: 100px;
height: 75px;
display: block;
}
.Tab1:hover {
border: 1px solid green;
}<div class="Tab1"></div>