.name {
    position: relative;
    top: 40%;
    text-align:center;
    font-weight: bold;
    font-size: 25px;
}

.download {
    position: relative;
    top: 55%;
}


.login-button { 
    width: 50%; 
    height: 50px; 
    border-width: 0px; 
    border-radius: 30px; 
    background: #5BB1A8; 
    cursor: pointer; 
    outline: none; 
    font-family: Microsoft YaHei; 
    color: white; 
    font-size: 17px; 
    display:block;
    margin:0 auto;
    text-align: center;
    text-decoration:none;
    line-height: 50px;
}
.login-button:hover { 
    background: #5599FF;
}

@media screen and (min-width: 1200px) {
    .left {
        width: 300px;
    }
    .right {
        width: 300px;
    }
    .login-button {
        width: 400px;
    }
    .name {
        font-size: 55px;
    }
}