html - Select elements with randomly-generated IDs with CSS -

i have markup ids not known in advance:

#product-20625055 { background-color: #fc0; }  #product-66980342 { background-color: #0cf; }  #product-54722210 { background-color: #f0c; }

<div class="product" id="product-20625055">product 1</div>  <div class="product" id="product-66980342">product 2</div>  <div class="product" id="product-54722210">product 3</div>

i need change background color of divs. specific selector think of not work:

div.product[id^="product-"] { background-color: transparent; } 

could done without hard-coding ids, using !important , changing html markup?

instead of resorting !important, might want consider using :not() pseudo-class increase specificity of selector, this:

div.product:not(#specificity-hack) { background-color: transparent; } 

this matches same elements original selector (assuming specificity-hack not possible id product div, seems here), since selectors inside :not() included in specificity calculation, counts more specific rules you're trying override.

(the main reason not use !important if can avoid it it's addictive — way override !important rule another !important rule, more use it, more you'll find needing it. eventually, half css rules marked !important, , you're started, except style sheets bloated lots of !important markers, , you've deprived of ability use !important override normal styles in rare cases it's legitimately useful, , have resort specificity hacks 1 shown above. moral of story: !important powerful easy abuse — don't use unless have to!)