.postListIntroduction__list {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
    margin: 0 -15px;
}

.postListIntroduction__item {
    position: relative;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    -webkit-box-align: start;
    -ms-flex-align: start;
    align-items: flex-start;
    margin-bottom: 2em;
    padding: 0 15px;
}

.postListIntroduction__postContainer {
    position: relative;
    -webkit-box-flex: 1;
    -ms-flex-positive: 1;
    flex-grow: 1;
    width: 100%;
    box-shadow: 5px 5px 20px rgba(0, 0, 0, 0.15);
    background-color: #fff;
    transition: box-shadow 0.2s ease-out;
}

.postListIntroduction__item:hover .postListIntroduction__postContainer {
    box-shadow: 5px 5px 20px rgba(0, 0, 0, 0.3);
}

.postListIntroduction__imageContainer {
    position: relative;
    width: 100%;
}

.postListIntroduction__image {
    display: block;
    width: 100%;
}

.postListIntroduction__postDetails {
    padding: 1.3em;
}

.postListIntroduction__title {
    font-size: 1.25em;
    color: #054a8a;
}

.postListIntroduction__date {
    color: #B4C8DC;
    font-size: 0.9em;
}

.postListIntroduction__readPost {
    display: inline-block;
    margin-top: 0.5em;
    font-size: 0.9em;
    font-weight: bold;
    color: #ee7325;
}

.postListIntroduction__readPost::after {
    content: '\02c3';
    font-family: "fontello";
    display: inline-block;
    width: 5px;
    margin-left: 0.4em;
    margin-right: 0;
    transition: transform 0.3s ease-out;
}

.postListIntroduction__item:hover .postListIntroduction__readPost::after {
    transform: translateX(6px);
}

.postListIntroduction__postLink {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    text-indent: -999em;
}

@media screen and (min-width: 540px) {
    .postListIntroduction__item {
        width: calc(100% / 2);
    }
}

@media screen and (min-width: 768px) {
    .postListIntroduction__item {
        width: calc(100% / 3);
    }
}