Center elements with flexbox

Flexbox (Flexible Box) is a powerful CSS module that makes layout design a breeze. When it comes to centering elements, flexbox is the simplest and most versatile solution. Set the container property to display: flex and justify-content: center and align-items: center thanks to that you can center any child elements both horizontally and vertically.

HTML

<div class="sf-wrapper">

    <div>Centered element</div>

</div>

CSS

/* ---------------------------------------------------------- */
/*                 Snippflow Centering elements               */
/* ---------------------------------------------------------- */

.sf-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    min-height: 100vh;
    padding: 40px;
    box-sizing: border-box;
}
/* Example div */
.sf-wrapper > div {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 250px;
    height: 250px;
    background-color: #46A787;
    color: #fff;
    border-radius: 8px;
    box-shadow: 6px 10px 20px 0px rgba(0,0,0,.1);
}

Result

See the Pen Center elements with flexbox by Snippflow (@snippflow) on CodePen.