cx-newsletter/renders/styles/inputs.css

.cx-newsletter-container input {
    outline: none !important;
    border: none;
    box-shadow: none !important;
    font-size: 1em;
    text-align: center;
}

.cx-newsletter-container input[type="text"],
.cx-newsletter-container input[type="number"],
.cx-newsletter-container input[type="email"],
.cx-newsletter-container input[type="password"] {
    border: none;
    border-bottom: 2px solid  var(--primary-color);
    border-radius: 0px;
    background-color: var(--background-color);
    color: var(--secondary-color);
    width: 300px;
    max-width: 100%;
    transition:
        border-color 0.5s,
        transform 0.5s;
}

.cx-newsletter-container input[type="text"]:focus,
.cx-newsletter-container input[type="number"]:focus,
.cx-newsletter-container input[type="email"]:focus,
.cx-newsletter-container input[type="password"]:focus {
    border-color: var(--secondary-color);
    transform: scaleX(1.1);
}

.cx-newsletter-container input[type="submit"],
.cx-newsletter-container input[type="button"],
.cx-newsletter-container a {
    text-decoration: none;
    display: block;
    background-color: var(--primary-color);
    color: var(--background-color);
    padding: 1em 2em;
    border-radius: 1em;
    border: none;
    transition:
        background-color 0.5s;
}

.cx-newsletter-container input[type="submit"]:hover,
.cx-newsletter-container input[type="button"]:hover,
.cx-newsletter-container a:hover {
    background-color: var(--secondary-color);
}

.cx-newsletter-container textarea {
    width: 90%;
    box-sizing: border-box;
    min-height: 500px;
    padding: 1rem;
    border: 3px solid var(--secondary-color);
    border-radius: 1rem;
    color: var(--font-color);
    background-color: inherit;
    transition:
        transform 0.5s;
}

.cx-newsletter-container textarea:focus {
    transform: scaleX(1.05);
}

.cx-newsletter-container input[type="checkbox"] {
    --margin-static: calc(300px / 2 - 20px / 2);
    --margin-float: calc(100% / 2 - 20px / 2);

    box-sizing: border-box;
    width: 20px;
    height: 20px;
    border: 2px solid var(--primary-color);
    padding: 2px;
    margin: 0px;
    margin-left: min(var(--margin-static), var(--margin-float));
    margin-right: min(var(--margin-static), var(--margin-float));
}