body{margin: 0}canvas{border: 1pt dotted black}.spine_vtuber_menu{margin: 8pt}.hidden{display: none;visibility: hidden}.spine_drop_zone{border: 2pt dashed black;height: 100pt;line-height: 20pt;width: 95%;margin-left: auto;margin-right: auto;text-align: center}.spine_drop_zone span{vertical-align: middle}.spine_drop_zone input[type='file']{display: none;visibility: hidden}#init_render{display: block;margin: 20pt auto;width: 10%}canvas#model_canvas{background-color: rgb(255,255,255)}input#file_video_opacity{vertical-align: middle}div#custom_expression_buttons > button{margin: 4pt}@keyframes redFlash{0%{color: black}50%{color: red}100%{color: black}}.redFlash{animation-name: redFlash;animation-duration: 1s;animation-iteration-count: infinite}