Match all elements having class name starting with a specific string [duplicate]

Answer 1

The following should do the trick:

div[class^='myclass'], div[class*=' myclass']{
    color: #F00;
}

---

Edit: Added wildcard (*) as suggested by David

Answer 2

You can easily add multiple classes to divs... So:

<div class="myclass myclass-one"></div>
<div class="myclass myclass-two"></div>
<div class="myclass myclass-three"></div>

Then in the CSS call to the share class to apply the same styles:

.myclass {...}

And you can still use your other classes like this:

.myclass-three {...}

Or if you want to be more specific in the CSS like this:

.myclass.myclass-three {...}

Answer 3

It's not a direct answer to the question, however I would suggest in most cases to simply set multiple classes to each element:

<div class="myclass one"></div>
<div class="myclass two></div>
<div class="myclass three"></div>

In this way you can set rules for all myclass elements and then more specific rules for one, two and three.

.myclass { color: #f00; }

.two { font-weight: bold; }

etc.