<div class="card-group ">

<div class="card">

<h3>第一個標題</h3>

<div class="sub-code">

Lorem ipsum dolor sit amet, consectetur adipisicing elit.

</div>

</div>

<div class="card">

<h3>第一個標題</h3>

<div class="sub-code">

Lorem ipsum dolor sit amet, consectetur adipisicing elit.

</div>

</div>

</div>

css：

.card

{ padding:50px;

width: 50%;

min-height: 300px;

float: left;

-webkit-box-sizing: border-box;

-moz-box-sizing: border-box;

box-sizing: border-box;

border: 2px solid white;

}