I'm gradually digging into the web world, and today I noticed something unusual in my code, good, unusual more or less let's go to the examples.
In this code I use type="text / css"
<link rel="stylesheet" type="text/css" href="caminho aqui">
And in this I no longer use
<link rel="stylesheet" href="caminho aqui">
Both work, but is there a problem if I do not set the type? I need a very concrete answer that heals my doubt.