/**
 * Body.
 */
body {
    background: #f8f8f8;
    margin: 0;
}

/**
 * Wrapper.
 */
#wrapper {
    background: #f8f8f8;
    box-sizing: border-box;
    padding: 10px 20px;
}

/**
 * Form.
 */
.required.field {
    margin-bottom: 20px;
}

.required.field label {
    margin-bottom: 8px;
    display: block;
}

.required.field label::after {
    content: " *";
    color: #f00;
}

#opt-in {
    position: relative;
    margin-bottom: 20px;
}

#single-opt-in {
    position: absolute;
    top: 0;
    left: 0;
}

#label-single-opt-in {
    vertical-align: top;
    font-size: 12px;
    line-height: 19px;
    color: #999;
    position: relative;
    left: 30px;
    width: 90%;
    display: block;
    -webkit-user-select: none;
    -moz-user-select: none;
    user-select: none;
}
.ui-corner-all input[type='checkbox'] + span::after {
    width: 15px;
    height: 15px;
}