#post .perex {
    font-size: 23px;
}

a.perex, a.perex:hover {
    color: #333;
    text-decoration: none;
}

a.perex:hover {
    color: black;
    background-color: rgba(255, 255, 255, 0.45);
}

.perex-image-container {
    text-align: center;
}

/*
    .col- (extra small devices - screen width less than 576px)
    .col-sm- (small devices - screen width equal to or greater than 576px)
    .col-md- (medium devices - screen width equal to or greater than 768px)
    .col-lg- (large devices - screen width equal to or greater than 992px)
    .col-xl- (xlarge devices - screen width equal to or greater than 1200px)
 */

@media(max-width: 576px) {
    .perex-image-container.bootstrap-column-size-sm {
        padding: 1em;
    }
}
@media(max-width: 768px) {
    .perex-image-container.bootstrap-column-size-md {
        padding: 1em;
    }
}
@media(max-width: 992px) {
    .perex-text-container.bootstrap-column-size-lg {
        padding: 1em;
    }
}

#post .perex img {
    margin: 0;
}