Some help please on readmore button

Hello,

Could you help me with this CSS code? I am trying to have a button placed in this module and I was hoping I coded it right.

I have figured out how to place a continue reading button but the read-more button is giving me a little issue.

This is the code:
.mod-item .mod-post-meta small {
background-color: #336699;
border-radius: 20px;
padding: 10px;
text-align: center;
margin-top: 20px;
margin-bottom: -20px;
}
.mod-item .mod-post-meta small {
color: white;
text-transform: uppercase;
}
.mod-item .mod-post-meta:hover {
background-color: #4197ee;
}

The button does not show when I do this. Could you please help.

techlick.com and the module is Random Techlicks

Regards,
Rob