body {
  margin: 0;
  padding: 0;
  background-image: url("fondo.jpg");
  background-color: #17a2b8;
  height: 100vh;
  background-size: cover;
}


.es
{
    color: gray;
    -webkit-transform: rotate(-45deg); 
    -moz-transform: rotate(-45deg);
    -o-transform: rotate(-45deg);
    transform: rotate(-45deg);
    filter: progid:DXImageTransform.Microsoft.BasicImage(rotation=3);
    height:50px;
    width:55px;
}

.inline-block 
{
    display:-moz-inline-stack;
    display:inline-block;
    zoom:1;
    *display:inline; 
}