bootstrap-4 | 易学教程

How can I move a div from top to bottom on mobile layouts? [duplicate]

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问题 This question already has answers here : Change div order with CSS depending on device-width (1 answer) How can I reorder my divs using only CSS? (24 answers) How to change order of divs on smaller screens? (1 answer) Closed 9 months ago . I am using Bootstrap 4, but if it works on version 3, it should work on v4. I have 2 divs within a column like so: <div class="row"> <div class="col-xs-12"> <div>TOP ON DESKTOP, BOTTOM ON MOBILE</div> <div>BOTTOM ON DESKTOP, TOP ON MOBILE</div> </div> </div

Extra line break between ordered list items

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问题 Question. Is it possible to add an extra line break between list items. par exemple My current situation. I'm using Rails with bootstrap. <h1> Things I like </h1> <ol> <li> Apples </li><br> <li> Bananas </li><br> </ol> I want that extra line break between my list items but I don't want to have to do the br tag between each. Is it possible through CSS or some special bootstrap class to take care of that? 回答1: In your CSS file: li { margin-bottom: 10px; } You can modify the accessor ("li") or

React bootstrap dropdown compatibility with webpack and babel

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问题 i was using react-bootstrap components without any problem before adding webpack to my react project, now i am experiencing some weird things. Navbar Component: import React, { Component } from 'react'; import { Link } from 'react-router-dom'; import {Dropdown, DropdownButton} from 'react-bootstrap'; class Navbar extends Component { constructor(props) { super(props); this.state = {}; } toggleOffcanvas() { document.querySelector('.sidebar-offcanvas').classList.toggle('active'); }

Small Circle cutout within a bigger circle thats offset to the bottom right Bootstrap

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问题 I created an image array in JavaScript and is in an image row on the page that uses split (there is a reason for it), all the images in the row is circled and looks like this but I need to add a smaller circle cutout in the bottom right of the bigger circle to showcase a smaller image this is how it should look like I can't figure it out could anyone please assist? My JavaScript and bootstrap code for the circles is as follows. Bootstrap <div class="row" id="partner_row"></div> Javascript

Small Circle cutout within a bigger circle thats offset to the bottom right Bootstrap

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How to make a table cell to stick on top and most left side of table at same time?

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问题 I have created table with sticky header using position property position:sticky; top:0; initially and then overwriting it for the first in first column using position:sticky; **left:0**; . But it is not working properly and I don't know where is the actual problem is but heading of column 1 seems sticky when previously set background color of is removed and text flows behind it otherwise it gets overlapped by upcoming headings. Kindly help me in resolving this. <!DOCTYPE html> <html> <head>

Allign bootstrap rows horizontally

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问题 I have created the following(in the image below) card layout using bootstrap the .card-columns class is adding my cards vertically so that i am loosing some part of the card. i want my cards alligned horizontally and exactly 3 cards per row without chaning the size of the card. here is my code. <body> <div class="card-columns"> <?php $conn=new mysqli("localhost","root","","dbname"); if(!$conn) { echo "connection_failed"; } else{ } $query= "select title,description,id from problems where

React-bootstrap/NavDropdown is hiding under the things below menubar (overlaping)

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问题 NavDropdown is hiding under the things which contain the slider and body or below the menubar. I tried z-index: lower/higher number than mycontainer and drop-top ClassName. Even this dropdown does not come on top but it working in the responsive mobile screen test (in dev tool) style.css .drop-top { z-index: 1000; display: block; position: static; width: 100%; color: #61dafb; position: sticky; top: 0; } .mycontainer{ z-index: 101; margin-right: auto; margin-left: auto; display: block; } .tata

React-bootstrap/NavDropdown is hiding under the things below menubar (overlaping)

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Uncaught TypeError: Cannot convert object to primitive value(zone-evergreen.js:171)

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问题 In Angular 9 (using Bootstrap 4 and Jquery 3.5.1). when clicking on bootstrap collapse button, I am getting an error on my browser console instead of a dropdown menu. I really don't know where exactly the error came from. Can't convert object to primitive value(zone-evergreen:171). Uncaught Type Error: Cannot convert object to primitive value(zone-evergreen.js:171 ) at RegExp.test (<anonymous>) at HTMLDivElement.<anonymous> (bootstrap.bundle.min.js:6) at Function.each (jquery.min.js:2) at S