.mensetsu{text-align:center;height:500px;font-weight:700}#theme,#Contents,#question,#sub{font-size:120%;margin:1rem;height:35px}#number{margin:5px;padding:10px}.btn--submit,input.btn--submit{font-size:1.6rem;color:#fff;background-color:#09f;padding:1rem 3rem}.btn--submit:hover,input.btn--submit:hover{color:#fff;background:#33f}input.btn--radius{border-radius:100vh}.theme,.sub{opacity:0;animation-name:feedIn;animation-duration:1s;animation-fill-mode:forwards}.question{opacity:0;animation-name:feedIn;animation-duration:1s;animation-fill-mode:forwards;animation-delay:.2s}.Contents{opacity:0;animation-name:feedIn;animation-duration:1s;animation-fill-mode:forwards;animation-delay:.6s}@keyframes feedIn{0%{opacity:0}100%{opacity:1}}