refactoring

web/css/main.css

@@ -4,6 +4,8 @@ body {
 	color: var(--fg-color-normal);
 	background-color: var(--bg-color-normal);
 	font-family: sans-serif !important;
+}
+body.body-no-select {
 	-webkit-user-select: none;
 	-moz-user-select: none;
 	user-select: none;
@@ -96,6 +98,12 @@ select:active {
 	}
 }
 
+div.buttons-row {
+	margin: 0;
+	padding: 0;
+	font-size: 0;
+}
+
 .row50 {
 	display: inline-block;
 	width: 50%;