fix bugs

static/css/index.css

@@ -23,9 +23,9 @@ input[type="number"] {
 h1{
     margin: 10px;
     padding: 5px;
-    width: 50%;
+    width: 80%;
     position: relative;
-    left: 25%;
+    left: 10%;
     border-top: 1px solid #bbcdc5;
     border-left: 1px solid #bbcdc5;
     box-shadow: 4px 4px 5px #888888;
@@ -33,7 +33,7 @@ h1{
 ul{
     display: block;
     height: 50%;
-    min-width: 500px;
+    min-width: 800px;
     max-width: 50%;
     position: relative;
     left: 25%;
@@ -64,7 +64,7 @@ li{
     display: block;
     margin: 10px;
     padding: 10px;
-    height: 15%;
+    height: 150px;
     text-align: center;
     font-size: large;
     font-weight: bold;
@@ -97,13 +97,14 @@ li{
 }
 .btnn,.btnn2{
     width: 100px;
-    height: 50px;
+    height: 25px;
     font-size: large;
     font-weight: bold;
     background: #f3f9f1;
     outline: none;
     border: #c2ccd0;
     box-shadow: 4px 4px 5px #888888;
+    text-align: center;
 }
 #time{
     display: inline-block;