Pure CSS Rounded Ribbon - html

Question

I am trying to achieve the below using pure CSS, is it possible? If I can figure out a way to hide the bottom part to the top of the bottom rounded corner that would work. But I am lost at what would work...
.ribbon, .ribbon * {
box-sizing: border-box;
-moz-box-sizing: border-box;
}
.ribbon {
width: 600px;
margin: 40px auto 10px;
padding: 0 10px 4px;
position: relative;
color: black;
background: #eee;
}
.ribbon h3 {
display: block;
height: 40px;
width: 620px;
margin: 0;
padding: 5px 10px 5px 30px;
position: relative;
left: -30px;
color: white;
background: rgb(193,0,0);
box-shadow: 0 1px 2px rgba(0,0,0,0.3);
}
.ribbon h3::before {
content: '';
display: block;
width: 0;
height: 0;
position: absolute;
bottom: -11px;
z-index: 10;
left: 0;
}
.ribbon.round h3 {
border-radius: 10px 0px 0px 0px;
}
.ribbon.round h3::before {
width: 20px;
height: 30px;
bottom: -20px;
border: none;
background: rgb(61,0,0);
border-radius: 10px 0px 0px 10px;
}
Fiddle to what I have currently
http://jsfiddle.net/yoderman94/Gdgwq/

Answer 1

Simply make your z-index value negative:
.ribbon h3::before {
z-index: -1;
}
That will place it under the heading.
To keep the rounded top, add another block with lower z-index, and fill it with the same background as the heading:
Example: http://jsfiddle.net/K7e96/

Answer 2

Here's a new fiddle, its like 99% there (only tested in Chrome), need to play with the shadows a bit more. http://jsfiddle.net/jrTAA/2/
.ribbon.round h3 {
border-radius: 5px 0px 0px 0px;
}
.ribbon.round h3::before, .ribbon.round h3::after {
width: 20px;
height: 8px;
bottom: -8px;
border: none;
border-top:2px solid rgb(193,0,0);
border-left:1px solid rgb(193,0,0);
border-bottom:1px solid rgb(193,0,0);
background: rgb(61,0,0);
border-radius: 5px 0px 0px 5px;
box-shadow: 0 1px 2px rgba(0,0,0,0.3), inset 2px 1px 2px rgba(0,0,0,0.3);
}

Answer 3

The fiddle:
http://jsfiddle.net/aleation/gCrhQ/
The code:
.ribbon, .ribbon * {
box-sizing: border-box;
-moz-box-sizing: border-box;
}
.ribbon {
width: 600px;
margin: 40px auto 10px;
padding: 0;
position: relative;
color: black;
background: #eee;
}
.ribbon h3 {
display: block;
height: 40px;
width: 100%;
margin: 0;
padding: 9px 0 0 10px;
color: white;
background: rgb(193,0,0);
box-shadow: 0 1px 2px rgba(0,0,0,0.3);
}
.ribbon h3::before,
.ribbon p::before{
content: '';
display: block;
width: 0;
height: 0;
position: absolute;
bottom: -11px;
z-index: 10;
left: 0;
width: 14px;
}
/* Round */
.ribbon.round h3::before{
height: 45px;
top: 0px;
left: -14px;
border: none;
background: rgb(193,0,0);
border-top-left-radius: 7px 4px;
}
.ribbon.round p::before{
height: 7px;
top: 40px;
left: -14px;
border: none;
background: rgb(61,0,0);
border-top-left-radius: 7px 4px;
border-bottom-left-radius: 7px 4px;
}
.ribbon p{
margin: 0;
padding: 20px;
}