.result-box.show{display:block;animation:slideIn .5s ease}.calculator-input{width:100%;padding:12px;margin:10px 0;border-radius:8px;border:2px solid rgba(255,255,255,.3);background:rgba(255,255,255,.2);color:white;font-size:1em}.calculator-input::placeholder{color:rgba(255,255,255,.7)}