.content_post .introduction{
background: #a7dada;
    padding: 1px 5px;}
    
    
    .introduction{
background: #a7dada;
    padding: 1px 5px;}
    
    .content_post ul {
    margin-bottom: 20px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}

.content_post ul li {
    margin-bottom: 4px;
    border-bottom: 1px #eee dashed;
    padding-bottom: 4px;
    font-size: 13px;
    width: 50%;
    float: left;
}