img[src*="#border-2px-black-600px"] {
    border: 2px solid black;
    width: 600px;
}

img[src*="#border-2px-black-400px"] {
    border: 2px solid black;
    width: 400px;
}

img[src*="#border-2px-black-300px"] {
    border: 2px solid black;
    width: 300px;
}

img[src*="#border-2px-black"] {
    border: 2px solid black;
 }