* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.captcha .preview {
    color: gray;
    width: 100%;
    text-align: center;
    height: 40px;
    line-height: 40px;
    letter-spacing: 8px;
    border: 1px dashed gray;
    font-family: monospace;
}

.captcha .preview span {
    display: inline-block;
    user-select: none;
    color: black;
}

.captcha .captcha-form input {
    width: 100%;
    padding: 8px;
    border: 1px solid gray;
}

button.captcha-refresh {
    width: 40px;
    border: none;
    outline: none;
    background-color: transparent !important;
    cursor: pointer;
    margin: 0;
    height: 40px !important;
}

/* button.captcha-refresh {
    border: none;
    background-color: transparent;
    height: 40px;
} */
.captcha-form {
    display: inline-flex;
    width: 100%;
}

i.fa.fa-refresh {
    padding: 12px;
    border: 1px solid gray;
    margin: 0;
}