docs pre font-size and nowrap on prepend/append

docs/assets/css/bootstrap.css

@@ -1384,6 +1384,7 @@ textarea::-webkit-input-placeholder {
 .input-append {
   margin-bottom: 5px;
   font-size: 0;
+  white-space: nowrap;
 }
 
 .input-prepend input,
@@ -5043,7 +5044,7 @@ a.badge:hover {
 
 .progress .bar {
   width: 0;
-  height: 18px;
+  height: 100%;
   font-size: 12px;
   color: #ffffff;
   text-align: center;

docs/assets/css/docs.css

@@ -479,6 +479,7 @@ h2 + .row {
 .bs-docs-example + .prettyprint {
   margin-top: -20px;
   padding-top: 15px;
+  font-size: 12px;
 }
 
 /* Tweak examples

less/forms.less

@@ -381,6 +381,7 @@ textarea {
 .input-append {
   margin-bottom: 5px;
   font-size: 0;
+  white-space: nowrap; // Prevent span and input from separating
   input,
   select,
   .uneditable-input {