.tjweixin{
    margin:0 auto;
    padding: 0;
    /* display: flex; */
    position: relative;
    width: 433px;
    height: 433px;
    /* left: 40%; */
    text-align: center;
}

.tjweixin input{
    width: 300px;
    height: 30px;
    font-size: 24px;
    margin-bottom: 50px;
}
.tjweixin button{
    width: 100px;
    height: 35px;
    float: right;
    background-color: black;
    color: #fff;
}
*{
    text-align: center;
}