.container{width:90vw;margin:3rem auto;padding:0 1rem;font-family:sans-serif}h1{margin-bottom:1.5rem}.url-form{gap:.5rem;margin-bottom:1rem;display:flex}.url-input{border:1px solid #ccc;border-radius:4px;flex:1;padding:.5rem .75rem;font-size:1rem}button{cursor:pointer;color:#fff;background:#e00;border:none;border-radius:4px;padding:.5rem 1.25rem;font-size:1rem}button:hover{background:#c00}.error{color:#c00;margin-bottom:1rem}.embed-wrapper{height:0;padding-bottom:56.25%;position:relative;overflow:hidden}.embed-wrapper iframe{border:0;width:100%;height:100%;position:absolute;top:0;left:0}