fixed toolbar button layout error

editor/css/dark.css

@@ -220,6 +220,8 @@ select {
 
 	#toolbar button {
 		margin-right: 6px;
+		line-height: 14px;
+		height: 24px;
 	}
 
 .Outliner {

editor/css/light.css

@@ -213,6 +213,8 @@ select {
 
 	#toolbar button {
 		margin-right: 6px;
+		line-height: 14px;
+		height: 24px;
 	}
 
 .Outliner {