popup.css

.cd-popup-container {
    margin: 1em 1em;
    text-align: center
}

.cd-popup-container p {
    font-size: 2em;
    width: 10em;
}

.cd-popup-container p b {
    color: #0F4D92;
}

.my-btn:hover {
    letter-spacing: 0.7em;
    background-color: #0F4D92;
}
  
.my-btn {
    color: white;
}

button {
    height: 4em;
    width: 95%;
    padding: 1.5em auto;
    margin: 0em auto 1em auto;
    background-color: #5DBCD2;
    border: none;
    border-radius: 3px;
    text-transform: uppercase;
    letter-spacing: 0.5em;
    transition: all 0.2s cubic-bezier(.4,0,.2,1);
    font-size: 0.9em;
}

/** switch */

.switch input {
    position: absolute;
    opacity: 0;
}

.switch {
    display: inline-block;
    font-size: 20px; /* 1 */
    height: 1em;
    width: 2em;
    background: #5DBCD2;
    border-radius: 1em;
}

.switch div {
    height: 1em;
    width: 1em;
    border-radius: 1em;
    background: #FFF;
    box-shadow: 0 0.1em 0.3em rgba(0,0,0,0.3);
    -webkit-transition: all 300ms;
        -moz-transition: all 300ms;
            transition: all 300ms;
}

.switch input:checked + div {
    -webkit-transform: translate3d(100%, 0, 0);
        -moz-transform: translate3d(100%, 0, 0);
            transform: translate3d(100%, 0, 0);
}