How to set a border for an HTML div tag

Question

I am trying to define a border around a div tag in HTML. In some browsers the border does not appear.

Here is my HTML code:

Answer 1

 .centerImge {
        display: block;
        margin-left: auto;
        margin-right: auto;
        width: 50%;
        height:50%;
    }
 

 @foreach (var item in Model)
{
 
  
  @item.CategoryName
}