bs隙間系1

index.html

<div class="container" style="background-color: red;"> <!-- .container背景:赤 -->
    <div class="row" style="background-color: green;"> <!-- .row背景:緑 -->
        <div class="col-sm-4" style="background-color: blue;"> <!-- .col背景1:青 -->
            <img src="./images/img1.jpg">
        </div>
        <div class="col-sm-4" style="background-color: yellow;"> <!-- .col背景2:黄 -->
            <img src="./images/img4.jpg">
        </div>
        <div class="col-sm-4" style="background-color: purple;"> <!-- .col背景3:紫 -->
            <img src="./images/img5.jpg">
        </div>
    </div>
</div>