Version 5.0.1002.182 (Official build), (64 bit) (Portable) style does not work in custom.css
html,
body {
-webkit-font-smoothing: subpixel-antialiased;
-webkit-text-stroke-width: 0.6px;
text-shadow: 0 0 0 black !important;
}
In the stable version, the style works without problems.