CSS Generator

Float Layout (don't use)
Customizing
Item
0
40
0
40
Content
Preview
Layout mode

11111

22222

33333

44444

Code
Paste to your file(s)
CSS
.floatbox {
  display: block;
  box-sizing: border-box;
  margin: 0px -10px;
}

.floatbox::after {
  clear: both;
  content: '';
  display: block;
}

.item {
  float: left;
  box-sizing: border-box;
  width: 50%;
  margin-bottom: 20px;
  padding: 0px 10px;
}

.item:nth-child(2n + 1) {
  clear: both;
}

.content {
  color: #242424;
  background-color: #3dcf5b;
  font-weight: 600;
  text-align: center;
  box-sizing: border-box;
  height: 100%;
  padding: 10px;
}
HTML
<div class="floatbox">
  <div class="item">
    <div class="content">
      <p>11111</p>
    </div>
  </div>
  <div class="item">
    <div class="content">
      <p>22222</p>
    </div>
  </div>
  <div class="item">
    <div class="content">
      <p>33333</p>
    </div>
  </div>
  <div class="item">
    <div class="content">
      <p>44444</p>
    </div>
  </div>
</div>