update css

src/components/Danmaku.vue

@@ -210,7 +210,7 @@ export default {
 }
 .arrow-icon {
   margin-right: 8px;
-  width: 24px;
+  width: 18px;
 }
 
 .send-btn {
@@ -245,7 +245,7 @@ export default {
   background: rgba(0, 0, 0, 0.7);
   width: 340px;
   color: #fff;
-  border-radius: 25px;
+  border-radius: 10px;
   max-height: 200px;
   overflow-x: hidden;
   overflow-y: scroll;