XF 2.2 Would this slow down loading?

[securedme]

I need to make a change to selected nodes, like 50 something of them. Would it slow down the page loading?

extra.less

[data-template="forum_view"] {
    &[data-container-key="node-20"],
    &[data-container-key="node-22"],
    &[data-container-key="node-25"],
    &[data-container-key="node-26"],

    //***** other 50 nodes here ****

    &[data-container-key="node-59"],
    &[data-container-key="node-60"],
     {
        .structItem-parts>li>a:nth-child(2) {
            display:none;   
        }
    }
}

Or is there a better way to do it?

 

[Mr Lucky]

Not noticeably