In your stylesheet, find
Code:
.wrapperAttribsOptions {
	margin: 0.3em 0em;
	}
and add to get
Code:
.wrapperAttribsOptions {
	margin: 0.3em 0em;
	float: left;
	}

#cartAdd input+input+input {
    position: relative;
    bottom: -0.5em;
    }