highlight-links-buttons.css

button, [role="button"], input[type=submit], [role="listbox"], [role="tab"] {
    box-shadow: inset 0 0 0 2px #036, 0 0 2px 0px blue !important;
    outline: white !important;
}
a:link, [role="link"], a:link * {
    text-decoration: underline !important;
}