Sorry i'm late, went out in the warm weather, but i finally found the glowy thing
/******Wiki Border******/
.theme-fandomdesktop-light .page {
border: 1px transparent;
border-radius: 1px;
-moz-box-shadow:0 0 30px #ffffff;
-webkit-box-shadow:0 0 30px #ffffff;
box-shadow:0 0 25px #ffffff;
}
.theme-fandomdesktop-dark .page {
border: 1px transparent;
border-radius: 1px;
-moz-box-shadow:0 0 30px #DC143C;
-webkit-box-shadow:0 0 30px #DC143C;
box-shadow:0 0 25px #DC143C;
}
/******Wiki Border End******/
You can personalize it by changing the color hex code and size