div.admonition.admonition-code > .admonition-title:after {
    content: "\f1c9"; 
}

div.admonition.admonition-clock-back > .admonition-title:after {
    content: "\f1da"; 
}

div.admonition.admonition-project > .admonition-title:after {
    content: "\f542"; 
}