chore: 优化样式

index.html

@@ -36,9 +36,7 @@
           border-radius: 50%;
           width: 2.5em;
           height: 2.5em;
-          -webkit-animation-fill-mode: both;
           animation-fill-mode: both;
-          -webkit-animation: loadAnimation 1.8s infinite ease-in-out;
           animation: loadAnimation 1.8s infinite ease-in-out;
         }
 
@@ -48,10 +46,7 @@
           margin: 80px auto;
           position: relative;
           text-indent: -9999em;
-          -webkit-transform: translateZ(0);
-          -ms-transform: translateZ(0);
           transform: translateZ(0);
-          -webkit-animation-delay: -0.16s;
           animation-delay: -0.16s;
           top: 0;
           transform: translate(-50%, 0);
@@ -66,7 +61,6 @@
 
         .loader:before {
           left: -3.5em;
-          -webkit-animation-delay: -0.32s;
           animation-delay: -0.32s;
         }
 
@@ -74,18 +68,6 @@
           left: 3.5em;
         }
 
-        @-webkit-keyframes loadAnimation {
-          0%,
-          80%,
-          100% {
-            box-shadow: 0 2.5em 0 -1.3em;
-          }
-
-          40% {
-            box-shadow: 0 2.5em 0 0;
-          }
-        }
-
         @keyframes loadAnimation {
           0%,
           80%,