update home page html to make header text h4 size, make button text allcaps, and provide wide-button and blue-button classes to be shared across other buttons
update home page html to make header text h4 size, make button text allcaps, and provide wide-button and blue-button classes to be shared across other buttons

YaleDHLab/voices,YaleDHLab/voices,YaleDHLab/voices,YaleDHLab/voices