我最近开始自己进行网络开发。但是,我希望这个答案可以帮助你。
If your class="section" is within your class="container" , your browser will
assume that your class="section" width is part of it's parent. It's parent is in
this case the class="container".
.container{
width:80%;
}
The class="container" width is based upon the width of it's parent.
The correct formula for this is: target/context=result
Thus your class="container" width is in this case 80% and this based on the width
of the parent of your class="container".
Your class="section" width is inside your class="container" and is in
this case 80%, thus this width is based on it's parent width.
So your class="container" is now seen as 100% and your class="section" is
80% of your class="container".
希望这个对你有帮助。