* {
  margin: 0;
  padding: 0;
}

a {
  color: #409eff;
  text-decoration: none;
  cursor: pointer;
  font-family: Helvetica Neue,Helvetica,PingFang SC,Hiragino Sans GB,Microsoft YaHei,SimSun,sans-serif;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  font-size: 14px;
}
html,body{
    width: 100%;
    height: 100%;
}

.button {
  
    display: inline-block;
    line-height: 1;
    white-space: nowrap;
    cursor: pointer;
    background: #fff;
    border: 1px solid #dcdfe6;
    border-color: #dcdfe6;
    color: #606266;
    -webkit-appearance: none;
    text-align: center;
    box-sizing: border-box;
    outline: none;
    margin: 0;
    transition: .1s;
    font-weight: 500;
    -moz-user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none;
    padding: 12px 20px;
    font-size: 14px;
    border-radius: 4px;
    color: #fff;
    background-color: #409eff;
    border-color: #409eff;
}