.contenedor {
position: fixed;
text-align:center;
margin: 0px auto;
font-family: sans-serif;
font-size: 18px;
font-weight: 450;
color: #ffffff;
background: linear-gradient(#FFDA63, #FFB940);
overflow: hidden;
padding: 15px;
width:100%;
height: 50px;
  }