index.css

.flower-password {
    position: relative;
    width: 100%;
    padding: 10px;
    border: 2px solid #168bc3;
    border-radius: 5px;
    background: #fff;
    min-height: 100%;
    min-width: 100%;
}

.flower-password .close {
    position: absolute;
    top: -2px;
    right: -2px;
    display: block;
    overflow: hidden;
    width: 16px;
    height: 16px;
    cursor: pointer;
    color: #fff;
    border: 2px solid #168bc3;
    background: #168bc3;
}

.flower-password .close::before {
    position: relative;
    top: -1px;
    display: block;
    content: '\D7';
    text-align: center;
    font-size: 12px;
    line-height: 14px;
    cursor: pointer;
}

.flower-password .title {
    font-size: 22px;
    font-weight: 700;
    margin: 0 0 5px 0;
    color: #168bc3;
    cursor: default;
}

.flower-password .input-wrap,
.flower-password .ctrl-wrap {
    font-size: 0;
    margin: 10px 0;
}

.flower-password .password,
.flower-password .key,
.flower-password .prefix,
.flower-password .suffix {
    font-size: 14px;
    width: 100%;
    line-height: 1;
    padding: 5px;
    border: 1px solid #999;
    border-radius: 3px;
}

.flower-password .prefix,
.flower-password .suffix {
    display: inline-block;
    vertical-align: top;
    width: 50%;
}

.flower-password .prefix {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
    border-right: none;
}

.flower-password .suffix {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}

.ctrl-wrap {
    position: relative;
}

.ctrl-wrap .btn-code {
    font-size: 12px;
    width: 100%;
    line-height: 22px;
    color: #fff;
    border: 1px solid #168bc3;
    border-radius: 3px;
    background-color: #168bc3;
    outline: none;
    cursor: pointer;
    padding-right: 70px;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.ctrl-wrap .btn-code:hover {
    background-color: #057ab2;
}

.ctrl-wrap .sel-length {
    cursor: pointer;
    outline: none;
    position: absolute;
    top: 0;
    right: 0;
    display: block;
    color: #fff;
    width: 64px;
    height: 29px;
    padding-left: 18px;
    background-color: transparent;
    border: none;
    border-radius: 3px;
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
    border-left: 1px solid #fff;
    appearance: none;
    -moz-appearance: none;
    -webkit-appearance: none;
}

.flower-password .hint {
    font-size: 12px;
    line-height: 1.5;
    color: #999;
    margin: 0;
    cursor: default;
}

.flower-password .hint + .hint {
    margin-top: 2px;
}

.flower-password a {
    cursor: pointer;
    text-decoration: none;
    color: #168bc3;
}

.flower-password a:hover {
    cursor: pointer;
    text-decoration: none;
    color: #ff881c;
}