dos

Public/static/css/index.css

@@ -146,6 +146,11 @@ input::-webkit-input-placeholder {
   position: fixed;
 }
 
+.btn-back:active {
+  background: url('../image2/btn-back-active.png') left top no-repeat;
+  background-size: 100%;
+}
+
 /* question-page */
 .question-page .question-img-block {
   transform-origin: 50% 100%;
@@ -171,6 +176,11 @@ input::-webkit-input-placeholder {
   background-size: 100%;
 }
 
+.question-page .btn-submit {
+  background: url(../image2/question-btn-submit-active.png) left top no-repeat;
+  background-size: 100%;
+}
+
 .question-page .point {
   animation: all 5s ease forwards;
   -webkit-animation: all 5s ease forwards;