simplify raw_input css

for once, vertical-align: baseline is the right choice

IPython/html/static/notebook/less/outputarea.less

@@ -139,16 +139,15 b' div.output_javascript:empty {'
 
 /* raw_input styles */
 
-div.raw_input {
-    line-height: 1em;
+div.raw_input_container {
     font-family: @monoFontFamily;
     // for some reason, em padding doesn't compute the same for raw_input
     // that is not the first input, but px does
     padding-top: 5px;
 }
 
-span.input_prompt {
-    font-family: inherit;
+span.raw_input_prompt {
+    /* nothing needed here */
 }
 
 input.raw_input {
@@ -156,10 +155,11 b' input.raw_input {'
     font-size: inherit;
     color: inherit;
     width: auto;
-    margin: 0px 0px 0px 1px;
-    padding-left: 1px;
-    padding-top: 0px;
-    height: 1em;
+    /* make sure input baseline aligns with prompt */
+    vertical-align: baseline;
+    /* padding + margin = 0.5em between prompt and cursor */
+    padding: 0em 0.25em;
+    margin: 0em 0.25em;
 }
 
 input.raw_input:focus {

IPython/html/static/style/ipython.min.css

@@ -123,9 +123,9 b' div.output_stderr{background:#fdd;}'
 div.output_latex{text-align:left}
 div.output_javascript:empty{padding:0}
 .js-error{color:#8b0000}
-div.raw_input{line-height:1em;font-family:monospace;padding-top:5px}
-span.input_prompt{font-family:inherit}
-input.raw_input{font-family:inherit;font-size:inherit;color:inherit;width:auto;margin:0 0 0 1px;padding-left:1px;padding-top:0;height:1em}
+div.raw_input_container{font-family:monospace;padding-top:5px}
+span.raw_input_prompt{}
+input.raw_input{font-family:inherit;font-size:inherit;color:inherit;width:auto;vertical-align:baseline;padding:0 .25em;margin:0 .25em}
 input.raw_input:focus{box-shadow:none}
 p.p-space{margin-bottom:10px}
 .rendered_html{color:#000;}.rendered_html em{font-style:italic}

IPython/html/static/style/style.min.css

@@ -1400,9 +1400,9 b' div.output_stderr{background:#fdd;}'
 div.output_latex{text-align:left}
 div.output_javascript:empty{padding:0}
 .js-error{color:#8b0000}
-div.raw_input{line-height:1em;font-family:monospace;padding-top:5px}
-span.input_prompt{font-family:inherit}
-input.raw_input{font-family:inherit;font-size:inherit;color:inherit;width:auto;margin:0 0 0 1px;padding-left:1px;padding-top:0;height:1em}
+div.raw_input_container{font-family:monospace;padding-top:5px}
+span.raw_input_prompt{}
+input.raw_input{font-family:inherit;font-size:inherit;color:inherit;width:auto;vertical-align:baseline;padding:0 .25em;margin:0 .25em}
 input.raw_input:focus{box-shadow:none}
 p.p-space{margin-bottom:10px}
 .rendered_html{color:#000;}.rendered_html em{font-style:italic}