我是 bootstrap 的新手，试图提高我的技能，但我被卡住了，我有 6 个盒子，左边三个，右边三个，我的问题是为什么盒子编号“4”和“5”之间有空格当我穿“sm、md、lg”尺码时？我怎样才能将第 5 号方框放在第 4 号方框下方而不留空格？是否可以去掉那些“空白”并仍然像这样工作？
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js"></script>
<style>
.box{
width:30%;
height:250px;
border: solid black 1px;
}
.boxx{
width:100px;
height:100px;
border: solid white 1px;
}
.bo{
width:50%;
height:550px;
border: solid black 1px;
}
* {
box-sizing: border-box;
box-sizing: border-box;
-webkit-box-sizing -moz-box-sizing: border-box;
}
</style>
</head>
<body>
<body>
<div class="row">
<div class="col-lg-6 col-md-6 col-sm-6 col-xs-12">
<div class="boxx mx-auto">
white space
</div>
</div>
<div class="col-lg-6 col-md-6 col-sm-6 col-xs-12">
<div class="box mx-auto">
2
</div>
</div>
<div class="col-lg-6 col-md-6 col-sm-6 col-xs-12">
<div class="bo mx-auto">
3
</div>
</div>
<div class="col-lg-6 col-md-6 col-sm-6 col-xs-12">
<div class="box mx-auto">
4
</div>
</div>
<div class="col-lg-6 col-md-6 col-sm-6 col-xs-12">
<div class="boxx mx-auto">
white space
</div>
</div>
<div class="col-lg-6 col-md-6 col-sm-6 col-xs-12">
<div class="box mx-auto">
5
</div>
</div>
</div>
</body>
</html>
</body>
</html>最佳答案
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js"></script>
<style>
.box{
width:30%;
height:250px;
border: solid black 1px;
}
.bo{
width:50%;
height:550px;
border: solid black 1px;
}
* {
box-sizing: border-box;
box-sizing: border-box;
-webkit-box-sizing -moz-box-sizing: border-box;
}
</style>
</head>
<body>
<div class="row">
<div class="col-md-6">
</div>
<div class="col-md-6">
<div class="box mx-auto">
2
</div>
</div>
<div class="col-md-6">
<div class="bo mx-auto">
3
</div>
</div>
<div class="col-md-6">
<div class="box mx-auto">
4
</div>
<div class="box mx-auto">
5
</div>
</div>
</div>
</body>
</html>
关于css - Bootstrap 盒子之间的空白，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/55048848/