.about_block {width: 100%; margin-bottom: 50px;}
.about_block .img_container 
{
    box-shadow: 0px 0px 5px 0px rgba(50, 50, 50, 0.3);
    width: 200px;
    height: 200px;
    flex: 0 0 200px;
    border-radius: 100%; 
    margin-right: 30px;
}
.about_block .img {width: 100%; height: 100%;padding: 15px;}
.about_block .img img {width: 100%; height: 100%; object-fit: contain;}