!important is important. See #39.

Viper007Bond · Viper007Bond · commit 988dc8bea48a · 2015-01-26T21:25:43.000-08:00
diff --git a/syntaxhighlighter3/styles/shCore.css b/syntaxhighlighter3/styles/shCore.css
@@ -82,7 +82,7 @@
   white-space: pre !important;
 }
 .syntaxhighlighter table {
-  table-layout: auto;
+  table-layout: auto !important;
   width: 100% !important;
 }
 .syntaxhighlighter table caption {

Original file line number	Diff line number	Diff line change
`@@ -82,7 +82,7 @@`
`82`	`82`	`white-space: pre !important;`
`83`	`83`	`}`
`84`	`84`	`.syntaxhighlighter table {`
`85`		`- table-layout: auto;`
	`85`	`+ table-layout: auto !important;`
`86`	`86`	`width: 100% !important;`
`87`	`87`	`}`
`88`	`88`	`.syntaxhighlighter table caption {`