Overwrite Default CSS Style [closed] - css

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Back to basics, I have neglected my CSS skills thus my CSS is a bit (very) rusty I'm working on a wordpress theme. The style.css themes default H2 style is coded as follows:
h2 {
font-size:1.7em;
background:url(images/heading_bg.gif) repeat top;
color: #fff;
padding:6px;
border-bottom:3px solid #e40001;
text-transform:uppercase;
font-family: 'Oswald', sans-serif;
font-weight:normal;
}
This result in any <h2> tag inserted into a post looking like this:
This provides a nice look in the theme however in certain situations I would just like to have a basic unstyled <h2> tag thus I created the following class:
.normal{
font-size:1.4em;
font-weight:bold;
color="red";
font-family: 'Oswald', sans-serif;
}
MY Problem - What I want to Achieve
I would like to overwrite the default <h2> style of the theme in certain situations however if I add the above class to any <h2> tag the .normal class is ignored and it keeps on displaying the normal h2 rule....why is this? What am I missing? How can I overwrite the default h2 style at certain types?

Answer 1

This the snippet I worked out. Doesn't seems a problem to me. Go through this code carefully.
PS: color="red"; is wrong. Use
when you want to override some element, you gotta look at the rules used in that element. ie, you gotta remove the background if any, change margin, paddings etc.
color:red;
h2 {
font-size: 1.7em;
background: url(http://i.stack.imgur.com/pOVzy.jpg) repeat top;
color: #fff;
padding: 6px;
border-bottom: 3px solid #e40001;
text-transform: uppercase;
font-family: 'Oswald', sans-serif;
font-weight: normal;
}
.normal {
font-size: 1.4em;
font-weight: bold;
color: red;
font-family: 'Oswald', sans-serif;
background: none;
}
<h2>
hello
</h2>
<h2 class="normal">
Hello World
</h2>

Answer 2

You should mention all css properties of h2 in your .normal class, thus it will be something like this:
.normal {
font-size:1.4em;
background:none;
color: #FF0000;
padding:0px;
border-bottom:none;
text-transform:initial;
font-family: 'Oswald', sans-serif;
font-weight: bold;
}

Answer 3

you can use the below code:
h2.normal{
font-size:1.4em;
font-weight:bold;
color="red";
font-family: 'Oswald', sans-serif;
}
which means h2 has a class normal then overwrite the styling

Answer 4

You may do one of these:
use .normal selector after h2 in your css file (assuming they have same specificity)
use !important in your .normal decleration
.normal{ propert: value !important; }
add some specifity to the .normal selector like:
h2.normal{ bla bla ...}