diff --git a/src/renderers/Remark.tsx b/src/renderers/Remark.tsx
index 7736691e4..72345590c 100644
--- a/src/renderers/Remark.tsx
+++ b/src/renderers/Remark.tsx
@@ -66,16 +66,12 @@ class Remark extends React.Component<RemarkProps> {
     const finalIcon = (tooltip && tooltip.icon) || icon;
 
     return (
-      <div
-        className={cx(
-          `Remark`,
-          (tooltip && tooltip.className) || className || `Remark--warning`
-        )}
-      >
+      <div className={cx(`Remark`, className || `Remark--warning`)}>
         <TooltipWrapper
           classPrefix={ns}
           classnames={cx}
           tooltip={filterContents(tooltip || content, data)}
+          tooltipClassName={tooltip && tooltip.className}
           placement={(tooltip && tooltip.placement) || placement}
           rootClose={(tooltip && tooltip.rootClose) || rootClose}
           trigger={(tooltip && tooltip.trigger) || trigger}
diff --git a/src/utils/validations.ts b/src/utils/validations.ts
index 9fa96bc92..064ccafbc 100644
--- a/src/utils/validations.ts
+++ b/src/utils/validations.ts
@@ -259,7 +259,7 @@ export function validate(
 
   rules &&
     Object.keys(rules).forEach(ruleName => {
-      if (!rules[ruleName]) {
+      if (!isExisty(rules[ruleName]) || isEmpty(rules[ruleName])) {
         return;
       } else if (typeof validations[ruleName] !== 'function') {
         throw new Error('Validation `' + ruleName + '` not exists!');