remove display inline (#3556)

Co-authored-by: Martin Schuhmacher <[email protected]>

Author: f-g-s

static/styles/homework/homework.scss

@@ -136,10 +136,6 @@
 			border-left: 2px solid grey;
 			padding-left: 5px;
 		}
-
-		.math span{
-			display: inline !important;
-		}
 	}
 
 	.more {