/* Blink animation */
.email-example label {
    animation: blink 0.8s ease-in-out infinite alternate;
    font-weight: bold;
    cursor: pointer;
    display: inline-block;
}
@keyframes blink {
    0% { color: transparent; }
    50%, 100% { color: #b01; }
}

/* Hide checkbox */
.email-toggle {
    display: none;
}

/* Collapsible content */
.email-content {
    display: none;
    margin-top: 10px;
}

/* Show when checkbox is checked */
.email-toggle:checked ~ .email-content {
    display: block;
}

/* Email box */
.email {
    border: solid 2px #000000;
    width: 88%;
    padding: 1px 15px;
    margin: 10px;
    box-shadow: 0 1px 3px rgba(0,0,0,.5);
}

/* To/From block */
.tofrom {
    margin-left: 10px;
    margin-top: 5px;
    padding: 1px 15px;
    border-left: solid 3px maroon;
}