code: private boolean removeCssPropertyNotFromSuperLockless(final String cssName,
              final String cssValue) {
  
          final String strippedCssName = StringUtil.strip(cssName);
          final String strippedCssValue = StringUtil.strip(cssValue);
  
          final String value = super.getAttributeValueMap().get(strippedCssName);
          // the value may contain !important that's why startsWith method is used
          // here.
          if (value != null && value.startsWith(
                  strippedCssValue.toLowerCase().replace(IMPORTANT, ""))) {
  
              return removeCssPropertyNotFromSuperLockless(strippedCssName);
          }
  
          return false;
      }
docs: removes only if it contains the given style name and value.
  
  @param cssName
  eg: color
  @param cssValue
  eg: green (for color styleName)
  @since 1.0.0
  @return true if the given syleName (as well as value contained
  corresponding to it) has been removed, or false if it doesn't
  contain the given styleName and value.
  @author WFF