.expand-all {
    border: rgb(85,114,131) 1px solid;
}
.expand-all:before {
    content: "Expand All";
}
.expand-all.all-expanded:before {
    content: "Collapse All";
}
.all-expanded {
    background-color: rgb(215,236,246);
}
span.accordion-toggle:before{
    content: "Expand to view modules and sub-topics";
}
span.accordion-toggle[aria-expanded="true"]:before{
    content: "Collapse modules and sub-topics";
}