What does the following tag mean in HTML?
I have started to do a web project for school. I have made use of a template which has the following tag quite often:
<div class="col-lg-12">What is the meaning and the use of it?
You seem to be using the Bootstrap library.
The <div> tag indicates the opening of a generic block-level element.
The class attribute indicates that this element belongs to a named grouping. Here the classname given to it is "col-lg-12".
Classnames can be used either in css or JavaScript. In this case, it is used by CSS in the Bootstrap library.
Bootstrap defines the style for the col-lg-12 classname as indicating that this div should take up the entire width of the screen on large screens. Bootstrap defines the entire screen to have a size of 12 columns. And this is saying that the div will take up all 12 columns on large devices.