What could be the reason for the text being displayed beyond its designated container?

Web Development

<section id="section1"></section>
<section id="section2">Content outside section</section>

CSS

section{
   width   : 100px;
   height  : 100px;
}
#section1{
   background-color  : lightgreen;
   float             : left;
}
#section2{
    background-color : green; 
}

I have two <sections> with specific dimensions. One is set to float:left and the other isn't. Both appear at the same location on the page. However, the text inside the second <section> spills outside its boundary. Why is that?

When I add overflow:auto to #section2, the second <section> is displayed in a new position beside the first one. This behavior confuses me.

Check out this code snippet for more details!

Answer №1

When div1 and div2 cover the same space in the first scenario, the line box must navigate around the float to display text properly. In this case, since div2 has an overflow of "visible", the text flow acts as if div2 is taller than it actually is, causing the text to display below both boxes.

However, in the second scenario, by setting div2's overflow to "auto", div2 creates a new block formatting context. As a result, div2 starts next to div1 instead of overlapping with it, allowing for the full visibility of both div1 and div2.

Answer №2

To prevent content from overflowing, apply the CSS property overflow: hidden to the parent div element.

Answer №3

The absence of width assignment for #div1 results in it taking up the full width of its parent element. Specify a width for #div1 to allow the blue container to utilise the remaining space.

 #div1{
 background-color: lightblue;
 float: left;
 width:50px;
 }

Answer №4

The reason for the issue is likely due to not properly clearing floated elements, which can result in height issues. When floating elements, it's important to clear them correctly to ensure that preceding divs take up the full vertical space.

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