html, body {
    padding: 0;
    margin: 0;
    background: #2d3a4b;
}
.login{
    width: 100%;
    height: 100vh;
    display: flex;
    align-items: center;
    flex-direction: row;
    justify-content: center;
}
.login-mask {
    width: 350px;
    height: 300px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 8px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    flex-direction: row;
    justify-content: center;
    color: white;
}
.login-mask div {
    text-align: center;
}
.login-mask button {
    border: none;
    width: 120px;
    height: 31px;
    border-radius: 31px;
    background: #109eff;
    color: white;
    cursor: pointer;
}
.login-mask button:hover {
    background: #409eff;
}
.remark{
    position: absolute;
    top: 10vh;
    width: 100%;
    color: white;
    font-size: 16px;
}
.remark div {
    width: 330px;
    border-radius: 4px;
    margin-left: calc(50% - 175px);
    background: rgba(0, 0, 0, .3);
    padding: 10px;
}