Provided the class
attribute is present as you say you can use the attribute selector like this:
<a class="" href="https://stackoverflow.com/questions/16353893/...">asd</a>
a[class=""] {
color: red;
}
If you want this to work when there is no class
attribute present on the element you can use :not([class])
.
<a href="https://stackoverflow.com/questions/16353893/...">asd</a>
a:not([class]) {
color: red;
}
These can then be combined together to handle both cases.
<a href="https://stackoverflow.com/questions/16353893/...">asd</a>
<a class="" href="https://stackoverflow.com/questions/16353893/...">asd</a>
a[class=""],
a:not([class]) {
color: red;
}