What is the difference between the img tag and the background attribute inserting a picture?
This article introduces the knowledge of "what is the difference between img tags and background attributes inserting pictures". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!
The difference between img Picture and background
Friends all know that you can use img to insert a picture in a web page, but some friends are easy to confuse the insertion of the two pictures after they come into contact with background. Then let's take a detailed look at it. Img is a html tag. If we want to insert a picture in the web page, just write the image path in the attribute src of img.
Insert a picture through background. Background is a background attribute provided by CSS, which is used for modification, so we need to write a structure first, and then modify it through the background.
.box {
Width: 300px
Height: 200px
Background:url (img/pic2.jpg) no-repeat
}
OK, from the code alone, it seems that inserting a picture through the background is a bit more complicated. Where is the complexity? If we look at the insertion of the background image, we need to write a container and set a width and height for the container to display the content. if the height of the container is 0, then the image cannot be inserted. Img image is different, it belongs to the html tag, which means that the content can be displayed as long as it is placed on the page. In addition, if you want to achieve the effect of text content on the picture, you can use the background image, the img picture itself can not put down the text.
What do you sleep? get up. Hi!
What do you sleep? get up. Hi!
/ * background background picture write text * /
.box {
Width: 300px
Height: 200px
Background:url (img/pic2.jpg) no-repeat
Font-size: 20px
Font-weight: 900
Color:crimson
}
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