Update shortcode-form.php

terminated all line break tags

adjusted formatting
	fixed tab mismatches
	
"HTML is Allowed and Will show up Formatted in the Editor" lable was double nested in <small> tag removed second set of tags to improve redability

raised overall font size to 1.2em

changed form inputs from paragraph blocks to lable blocks

put all "(optional)" labels inside <small> tags

put "Categories" fieldset label inside <legend> tags and removed line breaks.

floated checkboxes and dropdowns to the right and added a 60px margin to their right side to get them off the border

Removed "(optional)" from "Order By" label (it doesn't have to be changed from the default selection, but it has to be set to SOMETHING)

Added to following CSS:

    legend {
        font-size: 1.2em;
    }

    label {
        display: block;
        font-size: 1.2em;
        -webkit-margin-before: 1em;
        -webkit-margin-after: 1em;
        margin-bottom: 24px;
    }

    li label {
        display: block;
        font-size: 1em;
        -webkit-margin-before: 0em;
        -webkit-margin-after: 1em;
        margin-bottom: 0px;
    }

    select, input[type=checkbox] {

        float: right;
        margin-right: 60px;

    }