.article3 {
    background-color: #f8f8f8;
}

.a3-top h1 {
    color: #222;
    font-size: 25px;
    font-family: 'notokr-bold';
    letter-spacing: -0.04em;
    margin-bottom: 1.5rem;
    /* animation: blink .5s infinite; */
}

.a2-box .green-check {
    font-size: 35px;
}

.a2-box-green:hover {
    border: 4px solid #00a86b;
}

@keyframes blink {
    0% {opacity: 0;}
    50% {opacity: 1;}
    100% {opacity: 0;}
}


/*==================================================*/
@media (max-width: 600px) {
    .a2-box .green-check {
        font-size: 25px;
    }

    .a3-top h1 {
        font-size: 20px;
        margin-bottom: .5rem;
    }
}