.practical_lesson_div{
    display:-webkit-box;
    display:-moz-box;
    display:-ms-flexbox;
    display:-webkit-flex;
    display:flex;
    -webkit-flex-direction: column;
    -moz-flex-direction: column;
    -ms-flex-direction: column;
    flex-direction: column;
    width: 100%;
    direction: rtl;
    font-size: 30px;
    -webkit-align-items: center;
    -moz-align-items: center;
    -ms-align-items: center;
    align-items: center;
    background-color:white;
}

.practical_lesson_div p{
    width: 90%;
}

.practical_lesson_div .img1{
    width:300px;
    height: 500px;
    margin: 20px;
}

.practical_lesson_div .img2{
    width: 500px;
    height: 350px;
}

.practical_img{
    width: 50%;
}

.practical_img td{
    width: 50%;
    padding: 10px;
    display: -webkit-box;
    display: -moz-box;
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
    -webkit-align-items: center;
    -moz-align-items: center;
    -ms-align-items: center;
    align-items: center;
    -webkit-justify-content: center;
    -moz-justify-content: center;
    -ms-justify-content: center;
    justify-content: center;
}

.practical_img tr{
    width: 100%;
    display: -webkit-box;
    display: -moz-box;
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
    padding-top:20px;
    -webkit-justify-content: space-around;
    -moz-justify-content: space-around;
    -ms-justify-content: space-around;
    justify-content: space-around;
}

.practical_img video{
    width: 500px;
    height: 500px;
}