alighting text to the right of a slideshow

I’ve set up a slide show on my home page, and managed to get it to align left by altering the CSS as follows:

/* ----------- Slideshow -------------*/
.slideshow {
	margin-left: auto;
	margin-right: auto;
	text-align: right;
	outline: none;
float: left;
}

However, I can’t get the text on the page to sit to the right of the slideshow, despite altering the CSS above to what I assumed was aligning the text too. I’m using Weaver 2010 1.5.4, and I’ve got the homepage set up as one column, iframe full width. The site is https://www.seeingthecityanew.co.uk

If anyone’s got any ideas on how to make this work, it’d be much appreciated ??