Use of Responsive Utilities in Bootstrap and It’s Details with Example

Bootstrap is a technique of loading programs into the computer. It is a self starting process for using input data. Bootstrap is a highly recommended source for designing the web or web application.

Bootstrap is a very important technique to build responsive, mobile-first, and projects on the web. Bootstrap is an open source toolkit for developing with HTML.

Generally, we use our ideas to build the entire app with highly recommended variables on an mixing responsive grid system and extensive components are also used to make perfect app.

Bootstrap is used for showing and hiding content by devices via media to be combined with large and small medium devices.

Responsive utility classes is to make element visible by simplify not hiding it at that breakpoints sizes. There is resize in our browser for different devices to test responsive utility classes.

Bootstrap responsive utility is responsible to show, detect customer or visitor screen size,orientation, and automatically adapt the display according to the device.

Responsive utilities are those utilities which help to transform the data of the object into different platforms as like laptop, desktop, and mobiles etc. All the formats are fully synchronized with user requirement and user requirement is our first policy to satisfy with our data planning. 

If the all coding are made in HTML to complete the proforma of the app, then is it must be reliable to the customer and very helpful for customer to easily kept his device requirement with his suitable format or media.


To make responsive utilities through media query…..


@media screen and (max-width: 320px) and (min-width: 480px){




.ser {

font-size: 26px;





@media screen and (max-width: 640px) and (min-width: 480px){

#down-row {

margin-top: 20px;


.bg-color-wh {

margin-top: 35px;

margin-left: 3px;

height: 900px;



margin-top: 40px;



margin-top: 50px;

margin-left: 18px;




@media screen and (max-width::1024px) and (min-width 720px){

.bg-color-wh {

margin-top: 35px;

margin-left: 0px;

height: 480px;


.row-margin {

margin-top: 50px;


.bg-color-black {

margin-top: 50px;



I hope that this blog on Bootstrap will be really helpful for the students who want to gain in-depth knowledge of using responsive utilities in bootstrap. The programming that I have used to explain will be really helpful for all the bootstrap students.



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