At the moment TEST TEST appear side by side. How can I push one down onto a second line? Only through CSS.

```
<div id="box"><p>TEST TEST</p></div>

#box{
    height: 50px;
    text-align: center;
    position: relative;
    margin: 0 auto;
    background-color: red;
    color: white;
    display: inline-block;
    padding-left: 5px;
    padding-right: 5px;
}

```