.box-021 {
    position: relative;
    max-width: 650px;
    margin: 1em auto;
    padding: 1em 1.5em;
    border: 2px solid #0c419a;
    border-radius: 3px;
    color: #333;
}

.box-021::before {
    display: flex;
    justify-content: center;
    align-items: center;
    position: absolute;
    top: -1em;
    left: -1em;
    width: 2em;
    height: 2em;
    border-radius: 50%;
    background-color: #0c419a;
    color: #fff;
    font-weight: 600;
    content: attr(data-number);
}

@media screen and (max-width: 767px) {
.box-021 {
    position: relative;
    max-width: 350px;
    margin: 1em auto;
    padding: 1em 1.5em;
    border: 2px solid #0c419a;
    border-radius: 3px;
    color: #333;
}
}