无法摆脱隐形填充/空白以允许文本在按钮下包裹

I am a beginner to html and css and need help with a small problem I'm facing. On this website I am redesigning, I have three button form (Donate, Find and Subscribe). I want the paragraph beneath the Donate and Find buttons to fit where the white space appears. I have tried all of the margin/padding/border:0 auto; resets and nothing is working. I have a feeling its something to do with the float and clear properties as well as the div the buttons are within (the subscribe button is bigger than the other two buttons so could be the causal problem). Here is the link to my site: I am a beginner to html and css and need help w