Check out example codes for "css float". It will help you in understanding the concepts better.

Code Example 1

This is the code 

.float-wrapper::after {
  content: "";
  clear: both;
  display: block;

.float-wrapper -> is some parent element that wraps the floating items

<div class='float-wrapper'>
     <div class='floating-item'> </div>
     <div class='floating-item'> </div> 

::after  adds  an element after the .float-wrapper, that 
has no content and clears floats from the both sides, making sure, 
other sections are not affected by floats

Code Example 2

.col-1 {width: 8.33%;}
.col-2 {width: 16.66%;}
.col-3 {width: 25%;}

.col-4 {width: 33.33%;}
.col-5 {width: 41.66%;}
.col-6 {width: 50%;}

.col-7 {width: 58.33%;}
.col-8 {width: 66.66%;}
.col-9 {width: 75%;}

.col-10 {width: 83.33%;}
.col-11 {width: 91.66%;}
.col-12 {width: 

Code Example 3

.myelement {
	float: left;

Code Example 4

float: right;


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