.triangle-border{position:relative;padding:15px;margin:0 0 2em;border:5px solid #900;color:#333;background:#fff;-webkit-border-radius:10px;-moz-border-radius:10px;border-radius:10px}.triangle-border:before{content:"";position:absolute;bottom:-20px;left:40px;border-width:20px 20px 0;border-style:solid;border-color:#900 transparent;display:block;width:0}.triangle-border:after{content:"";position:absolute;bottom:-13px;left:47px;border-width:13px 13px 0;border-style:solid;border-color:#fff transparent;display:block;width:0}.triangle-obtuse{position:relative;padding:15px;margin:0 0 2em;color:#fff;background:#c81e2b;background:-webkit-gradient(linear,0 0,0 100%,from(#f04349),to(#c81e2b));background:-moz-linear-gradient(#f04349,#c81e2b);background:-o-linear-gradient(#f04349,#c81e2b);background:linear-gradient(#f04349,#c81e2b);-webkit-border-radius:10px;-moz-border-radius:10px;border-radius:10px}.triangle-obtuse:before{content:"";position:absolute;bottom:-20px;left:60px;border:0;border-right-width:30px;border-bottom-width:20px;border-style:solid;border-color:transparent #c81e2b;display:block;width:0}.triangle-obtuse:after{content:"";position:absolute;bottom:-20px;left:80px;border:0;border-right-width:10px;border-bottom-width:20px;border-style:solid;border-color:transparent #fff;display:block;width:0}