body{
    background: #f8f8f8;
}
.post_content img{
    max-width: 100%;
    margin-bottom: 10px;
    border-radius: .25rem; /* giống .rounded */
}
#logo{
    height: 30px;
}

#logo img{
    max-height: 100%;
    min-height: 30px;
}
#logo{
    position: relative;
}
#logo[nation]:after{
    position: absolute;
    bottom: -18px;
    right: 0;
    font-size: 12px;
    content: attr(nation);
    font-weight: bold;
    color: #1756d1;
}
h1#logo[nation]:after{
    bottom: -10px;
}
.img_item {
    object-fit: cover;
    width: 100px;
    height: 100px;
    aspect-ratio: 1/1;
}

.str_cut {
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    text-overflow: ellipsis;
    display: -webkit-box;
    overflow: hidden;
}
.str_cut_2 {
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    text-overflow: ellipsis;
    display: -webkit-box;
    overflow: hidden;
}
.str_cut_3 {
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    text-overflow: ellipsis;
    display: -webkit-box;
    overflow: hidden;
}
.str_cut_4 {
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
    text-overflow: ellipsis;
    display: -webkit-box;
    overflow: hidden;
}