Change colour in content container

Hoping for some help please. The font in the blue boxes and H2 used to be white, so easy to read. Now for some reason it’s black and it’s not easy to read. Under edit themes would I need to change the colour code in both or either of the 2 color #fff lines? Have made both italics below.

*/

/* Global */

.container {
    max-width: 90%;
}

.content-container {
    background-color: #1b4291;
    border-radius: 5px;
    <strong>color: #fff;</strong>
    padding: 40px;
    margin: 0 0 30px;
}

.content-container .container-title {
    font-weight: 900;
}

.content-container a {
    <em>color: #fff;</em>
    text-decoration: underline !important;
    font-weight: 700;
}

.content-container a:hover {
    color: #bbb !important;

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