#main .supplement_list {
margin-left: 10px;
}

#main .title {
    text-align: center;
    font-weight: bold;
    font-size: 30px;
    color: #b20000;
    padding: 30px 15px;
    border-bottom: 3px solid #b20000;
    margin-bottom: 40px;
}
#main .supplement_list .list {
    display: flex;
    flex-wrap: wrap;
    margin-top: 40px;
    margin-bottom: 100px;
}
#main .supplement_list .list li {
    background: #fff;
    width: calc(25% - 10px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 10px; 
    margin-bottom: 10px;
    margin-right: 10px;
    transition-duration: 0.3s;
}
#main .supplement_list .list li:hover {
    box-shadow: 0 0 15px #bbb;
}
#main .supplement_list .list li:hover .img {
    padding: 10px;
}
#main .supplement_list .list li .item_title {
    font-size: 16px;
    text-align: center;
    padding: 10px;
    color: #000;
}
#main .supplement_list .list li .img {
    margin: auto;
    padding: 25px;
}
#main .supplement_list .list li img {
    padding: 10px 25px;
}







@media screen and (max-width: 800px) {
   
    #main .supplement_list .list li {
        width: calc(33.3% - 10px);
    }
    
}
@media screen and (max-width: 600px) {
    #main .supplement_list .list li {
        width: calc(50% - 10px);
    }
    #main .supplement_list .list li .img {
        padding: 0;
    }
    
}