main.js

function copyrights() {
    document.getElementById("crs").style.display = "flex";
}

function closes() {
    document.getElementById("crs").style.display = "none";
}

function play() {
    document.getElementById("pause").style.display = "block";
    document.getElementById("play").style.display = "none";
}

function pause() {
    document.getElementById("play").style.display = "block";
    document.getElementById("pause").style.display = "none";
}