Two css files defining same class

If I have two css files:

File 1:

.colorme
{
   开发者_JAVA百科background-color:Red;
}

File 2:

.colorme
{
   background-color:Green;
}

And have included them in a page, which one will take priority? I'm guessing the one that is loaded last? If so is there anyway to ensure which one css file is loaded last?

The one loaded last (or as David points out, more accurately included last) wins in this case. Note that it's per-property though, if you load 2 definitions with different properties, the result will be the combination. If a property is in both the first and second, the last wins on that property.

The only way to ensure which is used last/wins is including the <link> elements in the order you want in the page.

For the property, here's an example:

.class1 { color: red; border: solid 1px blue; padding: 4px; } //First .css
.class1 { color: blue; margin: 2px; } //Second .css

is equivalent to:

.class1 { color: blue; border: solid 1px blue; padding: 4px; margin: 2px; }