Styles.css after updating will not change

Hi,

I did change the visited colors in the styles.css. After click on the link the visited color must be blue. That I did before with my site-right color after visiting.

But another site the styles.css will not change after uploading. After click on the link the visited color is grey?? Before it was ok and after updating to 4.7.2 it is not ok anymore. This is the wrong one.

Css changes:
/* =Basic structure
————————————————————– */

/* Body, links, basics */
html {
font-size: 87.5%;
}
body {
font-size: 14px;
font-size: 1rem;
font-family: Helvetica, Arial, sans-serif;
text-rendering: optimizeLegibility;
color: #444;
}
body.custom-font-enabled {
font-family: “Open Sans”, Helvetica, Arial, sans-serif;
}
a {
outline: none;
color: #21759b;
}
a:hover {
color: #0f3647 !important;
}
a:visited {
color: #21759b;
}

and
.entry-content p,
.entry-summary p,
.comment-content p,
.mu_register p {
margin: 0 0 24px;
margin: 0 0 1.714285714rem;
line-height: 1.714285714;
}
.entry-content a:visited,
.comment-content a:visited {
color: #21759b;
}

I have cleaned the caches etc. I have looked a lot but … I do not know how to solve the problem.

Regards
Loek from The Netherlands