Hello,
For home page popular course section go to appearance>>customiza>>custom css and use code given below:
.home-page .vibe_grid ul.grid li .block_media img{
height:190px !important;
}
.home-page .vibe_grid ul.grid li .block_content{
height:160px !important;
}
Refer:
https://prnt.sc/su77q0
For all courses page make course image align use this code:
.course div#course-dir-list ul#course-list li .item-avatar img{
height:180px !important;
}
.course div#course-dir-list ul#course-list li .item{
height:160px !important;
}
Refer:
https://prnt.sc/su78px
Thanks,