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6502bench/docs/main.css
Andy McFadden 7fc323cdef Don't strip topnav on narrow devices
The idea is to remove everything but the "HOME" link from the topnav
bar on very narrow devices, so that it doesn't look cramped.  Right
now we don't have a ton of stuff in topnav, and losing the tutorial
link is annoying.

If we want to restore this feature, we should also add a link to the
tutorial in the body of the page.
2021-06-23 13:32:04 -07:00

320 lines
6.8 KiB
CSS

/*
Responsive web design layout for 6502bench site.
All pages define elements with these IDs:
masthead (site logo / title)
topnav (top items, menu button) (consider "sticky" navbar?); contents
reduce to home/menu for XS
sidenav (large: float on left; medium/small: "collapsed sidepanel" or toggle)
main (80% for large, 100% for medium/small)
footer (with prev/next)
"main" section of tutorial pages:
2-column grid for large/medium, 1-column grid for small/XS
*/
* {
box-sizing: border-box;
}
/*
* Overall look and feel.
*/
html {
/* always show scrollbar, so centered masthead doesn't shift */
overflow-y: scroll;
}
body {
font-family: "Segoe UI", Arial, Helvetica, sans-serif;
padding: 0px;
margin: 0px;
background-color: #ffffff;
}
/*code {
font-size: 125%;
}*/
/*
* Display of keyboard shortcuts in the <kbd> element.
*/
kbd.key {
border-radius: 5px;
padding: 0px 2px 0;
border: 1px solid black;
background-color: #f7f7f7;
}
/*
* ==========================================================================
* Extra small devices (phones) - DEFAULT:
* - Main content grid is single-column.
* - For top nav, show only the first link and menu icon.
*/
/*
* Masthead.
*/
#masthead {
/* background-color: #202020;
color: #ffffff; */
background-color: #e0e0e0;
color: #101010;
position: relative;
}
#masthead .masthead-title {
text-align: center;
font-size: 4em;
font-weight: bolder;
padding: 10px;
margin: 0px;
}
#masthead .masthead-titleZZZ {
/* place text */
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
bottom: 0;
background: rgb(0, 0, 0); /* fallback color */
background: rgba(0, 0, 0, 0.5); /* black, 50% opacity */
color: #f1f1f1;
width: 100%;
padding: 20px;
}
#masthead img {
/* fill space with image */
background-position: center;
background-repeat: no-repeat;
background-size: cover;
background-attachment: fixed;
width: 100%;
height: auto;
}
/*
* Top navigation bar. Home on the left, primary links next to it,
* sidenav menu icon on the right for smaller screens.
*/
#topnav {
border-style: none;
border-width: thin;
padding: 10px;
background-color: #5f5f5f;
}
/*
* Show nothing but HOME initially. Expand the set as the screen widens.
* inline-block seems to help keep the text and icon consistent when
* expanding and collapsing (vs. inline).
*
* DISABLED -- we don't have all that many items, so it's just annoying.
*/
#topnav a {display:inline-block;}
/*#topnav a:not(:first-child) {display:none;}*/
#topnav a.icon {
float: right;
display: block;
}
.no-sidenav #topnav a.icon {
display: none; /* no sidenav, no icon */
}
#topnav button {
float: right;
display: block;
color: #ffffff;
background-color: #5f5f5f;
text-decoration: none;
padding: .2em 1em .2em 1em;
}
#topnav nav {
text-align: left;
padding: 0px;
}
#topnav nav a {
color: #ffffff;
background-color: #5f5f5f;
padding: .2em 1em .2em 1em;
text-decoration: none;
}
#topnav nav a:hover {
border-style: none;
color: #ffffff;
background-color: #000000;
}
#topnav nav a.active {
color: #8bc349;
}
/*
* Side navigation bar. Always visible on large screens, pops out when
* the hamburger icon is clicked on smaller screens.
*/
#sidenav {
display: none;
width: 180px;
margin: 0 8px 0 0;
padding: 5px;
}
#sidenav ul {
list-style-type: none;
padding: 0;
margin: 0;
}
#sidenav li {
padding: 0 0 1px 0; /* top right bottom left */
}
#sidenav ul ul li {
padding: 1px 0 0 10px; /* top right bottom left */
}
#sidenav a {
color: #ffffff;
display: block;
background-color: #5f5f5f;
padding: 5px 5px 5px 8px; /* top right bottom left */
text-decoration: none;
}
#sidenav a:hover {
color: #ffffff;
background-color: #000000;
}
#sidenav li.active > a {
color: #8bc349;
}
/*
* Main content area.
*/
#main {
margin: 8px;
display: block;
}
/*
* Grid layout for tutorial. Each grid has two items, forming a {text,image}
* pair, either of which may be absent. The document is a series of grids.
*
* We can have images come before or after the related text by adjusting
* the grid-row values.
*/
.grid-container {
display: grid;
grid-template-rows: auto auto;
/*margin-bottom: 4px;*/
}
.grid-item-text {
/* background-color: #e0e0ff; */
grid-row: 1;
}
.grid-item-text p {
/* items in grids don't collapse margins */
/* cf. https://stackoverflow.com/q/18963421/294248 */
margin-block-start: 0;
}
.grid-item-image {
/* background-color: #ffe0e0; */
grid-row: 2;
justify-self: center; /* center narrow images, mostly for 1-col layout */
}
.grid-item-image img {
width: 100%;
height: auto;
/* don't expand image beyond original size */
max-height: max-content;
max-width: max-content;
border: 1px solid #e0e0e0;
margin-top: 5px; /* align closer to top of text */
}
/*
* Previous/next buttons.
*/
#prevnext {
/* clear: both; */
margin: 8px;
margin-top: 30px;
text-align: center;
}
#prevnext a {
text-decoration: none;
display: inline-block;
padding: 8px 16px;
border-radius: 5px;
background-color: #f1f1f1;
color: black;
}
#prevnext a:hover {
background-color: #ddd;
}
/*
* Footer.
*/
#footer {
/* top margin gets eaten up by sidenav on short pages */
clear: both;
margin: 8px;
}
/*
* ==========================================================================
* Small devices (portrait tablets, large phones):
* - For top nav, want to show all links in the top nav bar, as well
* as the menu icon.
*/
@media only screen and (min-width: 600px) {
#topnav a:not(:first-child) {display:inline-block;}
}
/*
* ==========================================================================
* Medium devices (landscape tablets):
* - Switch to two-column layout, text on the left, image on the right.
*/
@media only screen and (min-width: 768px) {
.grid-container {
grid-template-columns: 50% 50%;
grid-template-rows: initial;
grid-column-gap: 8px;
}
.grid-item-text {
grid-row: 1;
grid-column: 1;
}
.grid-item-image {
grid-row: 1;
grid-column: 2;
}
}
/*
* ==========================================================================
* Large devices (laptops/desktops):
* - Show sidenav on the side.
* - Don't show menu icon in the topnav bar.
*/
@media only screen and (min-width: 992px) {
#sidenav {
display: block;
float: left;
}
#main {
/* make room for sidenav */
margin-left: 188px;
}
.no-sidenav #main {
/* ...or not */
margin-left: 8px;
}
#topnav a.icon {
display: none;
}
}