Backgrounds en CSS3
- La especificación:
- Controlar el tamaño de la imagen de fondo: Supersize that Background, Please!
- Algunas ideas: The Bright (Near) Future of CSS

background:url('../img/svg-logo.png') top left no-repeat, url('../img/svg-logo.png') top right no-repeat, url('../img/svg-logo.png') bottom left no-repeat, url('../img/svg-logo.png') bottom right no-repeat, url('../img/HTML5_1Color_Black_100.png') center repeat-x;
background: -moz-linear-gradient(top, #f0b7a1 0%, #8c3310 50%, #752201 51%, #bf6e4e 100%); /* FF3.6+ */ background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#f0b7a1), color-stop(50%,#8c3310), color-stop(51%,#752201), color-stop(100%,#bf6e4e)); /* Chrome,Safari4+ */ background: -webkit-linear-gradient(top, #f0b7a1 0%,#8c3310 50%,#752201 51%,#bf6e4e 100%); /* Chrome10+,Safari5.1+ */ background: -o-linear-gradient(top, #f0b7a1 0%,#8c3310 50%,#752201 51%,#bf6e4e 100%); /* Opera11.10+ */ background: -ms-linear-gradient(top, #f0b7a1 0%,#8c3310 50%,#752201 51%,#bf6e4e 100%); /* IE10+ */ background: linear-gradient(top, #f0b7a1 0%,#8c3310 50%,#752201 51%,#bf6e4e 100%); /* W3C */
background-size:cover; background-origin:border-box;
background-size:contain; background-origin:border-box;
background-size:50%; background-origin:border-box;