bootstrap-4

问题 This question already has answers here : Remove padding from columns in Bootstrap 3 (26 answers) Remove gutter space for a specific div only (9 answers) Closed last year . I am trying to use bootstrap to create columns and rows to place my images however too much padding is being added around the images which is preventing my images from looking like the design: This is how I structured my HTML: <!-- header --> <header> <div class="container"> <div class="row"> <div class="col-md-5"> <div

问题 This question already has answers here : Remove padding from columns in Bootstrap 3 (26 answers) Remove gutter space for a specific div only (9 answers) Closed last year . I am trying to use bootstrap to create columns and rows to place my images however too much padding is being added around the images which is preventing my images from looking like the design: This is how I structured my HTML: <!-- header --> <header> <div class="container"> <div class="row"> <div class="col-md-5"> <div

问题 This question already has answers here : Bootstrap 3 Grid, do I need a container? (3 answers) Closed 2 years ago . I know column should have row as immediate parent (or, to be precise, rows should have only columns as ther immediate children) but does row must have container/container-fluid as immediate parent? I couldn't find mentioning it in docs and i've seen examples of both: where rows do and don't have their respective containers . 回答1: It depends on the Bootstrap version, and how you

问题 This question already has answers here : Bootstrap 3 Grid, do I need a container? (3 answers) Closed 2 years ago . I know column should have row as immediate parent (or, to be precise, rows should have only columns as ther immediate children) but does row must have container/container-fluid as immediate parent? I couldn't find mentioning it in docs and i've seen examples of both: where rows do and don't have their respective containers . 回答1: It depends on the Bootstrap version, and how you

问题 I using Bootstrap 4 and I set navbar-brand to the center and all elements to the right side. I want to set my nav element below navbar-brand . Also, I want to set "login" and "log out" to the right side of the nav , but using mr-auto doesn't work. html: <nav class="navbar navbar-expand-sm navbar-dark bg-dark"> <a href="#" class="navbar-brand">Academind</a> <button class="navbar-toggler" data-toggle="collapse" data-target="#navbarMenu"> <span class="navbar-toggler-icon"></span> </button> <div

问题 I using Bootstrap 4 and I set navbar-brand to the center and all elements to the right side. I want to set my nav element below navbar-brand . Also, I want to set "login" and "log out" to the right side of the nav , but using mr-auto doesn't work. html: <nav class="navbar navbar-expand-sm navbar-dark bg-dark"> <a href="#" class="navbar-brand">Academind</a> <button class="navbar-toggler" data-toggle="collapse" data-target="#navbarMenu"> <span class="navbar-toggler-icon"></span> </button> <div

问题 I have a fresh created Angular 4 CLI app. After running this: npm install bootstrap@4.0.0-beta jquery popper.js --save and editing .angular-cli.json like this: "styles": [ "styles.css", "../node_modules/bootstrap/dist/css/bootstrap.min.css" ], "scripts": [ "../node_modules/jquery/dist/jquery.slim.min.js", "../node_modules/bootstrap/dist/js/bootstrap.min.js", "../node_modules/popper.js/dist/umd/popper.min.js" ], I still have an issue in Chrome Console: Uncaught Error: Bootstrap dropdown

问题 <nav class="navbar navbar-light bg-light"> <a class="navbar-brand" href="#"> <img src="/docs/4.4/assets/brand/bootstrap-solid.svg" width="30" height="30" class="d-inline-block align-top" alt="">Bootstrap</a> <div class="d-flex justify-content-center"> <form class="form-inline"> <input class="form-control mr-sm-2" type="search" placeholder="Search" aria-label="Search"> <button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button> </form> </div> </nav> I was trying to put

问题 Imagine you have an array: listItems = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 ,13 ,14 ,15 ,16, 17, 18, 19, 20, 21, 22, 23]; And I want it to convert into 3-dimensional Array((Matrix of ROW x COLUMN)x SET by Number of Instances, like this: Example: 3 Rows and 3 Columns = 1 Set --GENERATED GRIDS-- A = [[1, 2, 3], [4, 5, 6],[7, 8, 9]; B = [[10, 11, 12], [13, 14, 15], [16, 17, 18]]; C = [[19, 20, 21], [22,23]] Note, that rows and columns of the matrix are changeable. Meaning that the number of

问题 Imagine you have an array: listItems = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 ,13 ,14 ,15 ,16, 17, 18, 19, 20, 21, 22, 23]; And I want it to convert into 3-dimensional Array((Matrix of ROW x COLUMN)x SET by Number of Instances, like this: Example: 3 Rows and 3 Columns = 1 Set --GENERATED GRIDS-- A = [[1, 2, 3], [4, 5, 6],[7, 8, 9]; B = [[10, 11, 12], [13, 14, 15], [16, 17, 18]]; C = [[19, 20, 21], [22,23]] Note, that rows and columns of the matrix are changeable. Meaning that the number of