The simplest solution would be to remove the individual borders on each div and just use the container to get what you need,
https://jsfiddle.net/uqdmvonv/
Example:
div.pp-footer1-container1 div.pp-footer1-fill4{
display: table;
border: 2px solid white;
border-radius: 8px;
}
div.pp-footer1-container1 div.pp-footer1-fill4{
border: none;
border-right: 2px solid white; // This is for that middle bar
}
div.pp-footer1-container1 div.pp-footer1-fill4 a:hover{
text-decoration: none;
background-color: white;
color: #ff0000;
transition: all .5s ease;
}