问题
I\'m trying to do a layout with bootstrap, but I can\'t figure it out what I\'m doing wrong. I\'m putting two columns of 6 and the second column of 6 I\'m putting 2 columns of 3 inside, but it\'s not working. I\'m new to bootstrap.
Here is the code:
<!DOCTYPE html>
<html>
<head>
<title></title>
<link rel=\"stylesheet\" href=\"https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css\" integrity=\"sha384-rwoIResjU2yc3z8GV/NPeZWAv56rSmLldC3R/AZzGRnGxQQKnKkoFVhFQhNUwEyJ\" crossorigin=\"anonymous\">
<script src=\"https://code.jquery.com/jquery-3.1.1.slim.min.js\" integrity=\"sha384-A7FZj7v+d/sdmMqp/nOQwliLvUsJfDHW+k9Omg/a/EheAdgtzNs3hpfag6Ed950n\" crossorigin=\"anonymous\"></script>
<script src=\"https://cdnjs.cloudflare.com/ajax/libs/tether/1.4.0/js/tether.min.js\" integrity=\"sha384-DztdAPBWPRXSA/3eYEEUWrWCy7G5KFbe8fFjk5JAIxUYHKkDx6Qin1DkWx51bBrb\" crossorigin=\"anonymous\"></script>
<script src=\"https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/js/bootstrap.min.js\" integrity=\"sha384-vBWWzlZJ8ea9aCX4pEW3rVHjgjt7zpkNpZk+02D9phzyeVkE+jo0ieGizqPLForn\" crossorigin=\"anonymous\"></script>
<style type=\"text/css\">
</style>
</head>
<body>
<div class=\"container-fluid\">
<div class=\"container\">
<div class=\"row\">
<div class=\"col-1 col-sm-1 col-md-1 col-xl-1\" style=\"border-left: solid 1px #ffbfbf;\">a</div>
<div class=\"col-1 col-sm-1 col-md-1 col-xl-1\" style=\"border-left: solid 1px #ffbfbf;\">a</div>
<div class=\"col-1 col-sm-1 col-md-1 col-xl-1\" style=\"border-left: solid 1px #ffbfbf;\">a</div>
<div class=\"col-1 col-sm-1 col-md-1 col-xl-1\" style=\"border-left: solid 1px #ffbfbf;\">a</div>
<div class=\"col-1 col-sm-1 col-md-1 col-xl-1\" style=\"border-left: solid 1px #ffbfbf;\">a</div>
<div class=\"col-1 col-sm-1 col-md-1 col-xl-1\" style=\"border-left: solid 1px #ffbfbf;\">a</div>
<div class=\"col-1 col-sm-1 col-md-1 col-xl-1\" style=\"border-left: solid 1px #ffbfbf;\">a</div>
<div class=\"col-1 col-sm-1 col-md-1 col-xl-1\" style=\"border-left: solid 1px #ffbfbf;\">a</div>
<div class=\"col-1 col-sm-1 col-md-1 col-xl-1\" style=\"border-left: solid 1px #ffbfbf;\">a</div>
<div class=\"col-1 col-sm-1 col-md-1 col-xl-1\" style=\"border-left: solid 1px #ffbfbf;\">a</div>
<div class=\"col-1 col-sm-1 col-md-1 col-xl-1\" style=\"border-left: solid 1px #ffbfbf;\">a</div>
<div class=\"col-1 col-sm-1 col-md-1 col-xl-1\" style=\"border-right: solid 1px #ffbfbf;border-left: solid 1px #ffbfbf;\">a</div>
</div>
</div>
<div class=\"container\">
<div class=\"row\">
<div class=\"col-12 col-sm-12 col-md-6 col-xl-6\" style=\"border-left: solid 1px #ffbfbf;\"><div style=\"height: 700px; background-color: #FF3355; border-radius: 15px;\">a a a a a a</div></div>
<div class=\"col-12 col-sm-12 col-md-6 col-xl-6\" style=\"border-left: solid 1px #ffbfbf;\">
<div class=\"col-12 col-sm-12 col-md-6 col-xl-6\" style=\"padding-right: 0px; padding-left:0px;border-left: solid 1px #ffbfbf;\"><div style=\"height: 320px; background-color: #FF3355; border-radius: 15px;\">a</div></div>
<div class=\"col-12 col-sm-12 col-md-6 col-xl-6\" style=\"padding-right: 0px; padding-left:0px;border-left: solid 1px #ffbfbf;\"><div style=\"height: 320px; background-color: #FF3355; border-radius: 15px;\">a</div></div>
<div class=\"col-12 col-sm-12 col-md-6 col-xl-6\" style=\"padding-right: 0px; padding-left:0px;border-left: solid 1px #ffbfbf;\"><div style=\"height: 320px; background-color: #FF3355; border-radius: 15px;\">a</div></div>
<div class=\"col-12 col-sm-12 col-md-6 col-xl-6\" style=\"padding-right: 0px; padding-left:0px;border-left: solid 1px #ffbfbf;\"><div style=\"height: 320px; background-color: #FF3355; border-radius: 15px;\">a</div></div>
</div>
</div>
</div>
</div>
335
</body>
</html>What I want to do :
What I get:
回答1:
You're just missing a basic Bootstrap "rule". From the docs..
In a grid layout, content must be placed within columns and only columns may be immediate children of rows.
In Bootstrap 4, .col- that are not placed in .row will stack vertically.
https://www.codeply.com/go/GlA3IP7oGU
<div class="row">
<div class="col-12 col-sm-12 col-md-6 col-xl-6" style="border-left: solid 1px #ffbfbf;">
<div style="height: 700px; background-color: #FF3355; border-radius: 15px;">a a a a a a</div>
</div>
<div class="col-12 col-sm-12 col-md-6 col-xl-6" style="border-left: solid 1px #ffbfbf;">
<div class="row">
<div class="col-12 col-sm-12 col-md-6 col-xl-6" style="padding-right: 0px; padding-left:0px;border-left: solid 1px #ffbfbf;">
<div style="height: 320px; background-color: #FF3355; border-radius: 15px;">a</div>
</div>
<div class="col-12 col-sm-12 col-md-6 col-xl-6" style="padding-right: 0px; padding-left:0px;border-left: solid 1px #ffbfbf;">
<div style="height: 320px; background-color: #FF3355; border-radius: 15px;">a</div>
</div>
<div class="col-12 col-sm-12 col-md-6 col-xl-6" style="padding-right: 0px; padding-left:0px;border-left: solid 1px #ffbfbf;">
<div style="height: 320px; background-color: #FF3355; border-radius: 15px;">a</div>
</div>
<div class="col-12 col-sm-12 col-md-6 col-xl-6" style="padding-right: 0px; padding-left:0px;border-left: solid 1px #ffbfbf;">
<div style="height: 320px; background-color: #FF3355; border-radius: 15px;">a</div>
</div>
</div>
</div>
</div>
Read how Bootstrap nesting works
Related: Wrapping bootstrap columns in extra div
来源：https://stackoverflow.com/questions/45521269/bootstrap-4-0-grid-system-layout-not-working