body {
  margin: 0;
  color: #555;
  font-family: 'Helvetica Neue', Helvetica, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif;
  font-size: 15px; }

a {
  color: #555;
  text-decoration: none; }

input, textarea {
  border: 1px solid #ddeafb; }

input[type=submit],
input[type=button] {
  cursor: pointer; }

input {
  width: 100%;
  box-sizing: border-box;
  padding: 10px;
  outline: none;
  margin-bottom: 5px;
  border-radius: 5px; }

.hint {
  font-size: 12px;
  text-align: right;
  padding-right: 10px;
  margin-bottom: 15px;
  visibility: hidden; }

.right {
  border-color: #1dc091; }

.hint_right {
  color: #1dc091; }

.wrong {
  border-color: #EA5A70; }

.hint_wrong {
  color: #EA5A70; }

input[type=submit],
.button {
  display: block;
  margin: 0 auto;
  line-height: 20px;
  font-size: 20px;
  color: #fff;
  background: #0f88eb;
  border: 0; }

.lable {
  display: inline-block; }

.nav {
  width: 400px;
  height: 40px;
  margin: 0 auto;
  background: #0F88EB; }

.nav_left,
.nav_right {
  display: inline-block;
  vertical-align: top;
  box-sizing: border-box;
  width: 49%;
  height: 30px;
  line-height: 30px;
  font-size: 24px; }
  .nav_left a,
  .nav_right a {
    color: white; }

.nav_left {
  padding-left: 20px;
  text-align: left; }

.nav_right {
  padding-right: 20px;
  text-align: right; }

.number,
.time {
  display: inline-block;
  width: 50%; }

.time,
.msge {
  text-align: right; }

.msge a {
  color: #fb752d; }