Ah, thank you very much for supplemental tips, hugeblack.
I actually adjusted length of images in my another topic, but I forgot about this option when I created the topic.
Collections for someone who would like to improve English skillsYou can adjust the length and width this code:
This is my first time to know about this one. So many thanks to you, hugeblack.
You can also add animated images after adjusting the end to .png