Question

I need to create an element with radial glow, like this.
But now it’s too unstable variant. Are there any better solutions?

Unstable means, that if i’ll change text in span element, than i should to change left property value.

Answer 1

To automatically justify the text remove the position, left and top definition from h1 > span and add the following to the h1:

h1 {
    ...
    line-height: 44px;
    text-align: center;
}

Also see you updated example.