css

nog lezen: https://www.mozilla.org/en-US/developer/css-grid/

nth-child

iframe:nth-child(1) { border: 5px solid yellow; }
iframe:nth-child(2) { border: 5px solid black; }
...

width/height of viewport

img {
  width: 50vw;
  height: 50vh;
  /*object-fit: cover; */
}

web

see [[web]]

css tricks

• http://css-tricks.com/snippets/html/base64-encode-of-1x1px-transparent-gif/

flexbox

• http://css-tricks.com/snippets/css/a-guide-to-flexbox/

use css3 features if supported

var css3_support = (document.createElement("detect").style.objectFit === ""); //'objectFit' or other css3 t
document.getElementsByTagName("html")[0].className += (css3_support ? " css3" : " nocss3");

.css3 img { 
  /* css3 support */
}
.nocss3 img {
  /* no css3 support */
}
img {
  /* always */
}

css names in javascript

"background-color" becomes "backgroundColor", and "list-style-type" becomes "listStyleType"

detect css3

• http://www.sitepoint.com/detect-css3-property-browser-support/

initial

h1 { color: initial; }

Foundation

• http://foundation.zurb.com/index.html
• [[http://foundation.zurb.com/learn/video-started-with-foundation.html|video]]

Goed boek

(tip van Peter): http://www.cssmastery.com/

Center

• http://bluerobot.com/web/css/center1.html
• http://css-discuss.incutio.com/wiki/Centering_Block_Element
• http://dorward.me.uk/www/centre/

attribute selectors

• http://css-tricks.com/attribute-selectors/

  td[bgcolor="#00ffff"] {
  border:5px solid green;
  }

input type text

input[type="text"] 

multiple columns

.template-front-page .intro {
    -moz-column-count:2; /* Firefox */
    -webkit-column-count:2; /* Safari and Chrome */
    column-count:2;
    -moz-column-gap:40px; /* Firefox */
    -webkit-column-gap:40px; /* Safari and Chrome */
    column-gap:40px;
    text-align: justify;
}

position:relative

• http://jsfiddle.net/DsTeK/2/

style only children not descendants

li.page_item.current_page_item > a {
}

center div's vertically

.className{
    position:absolute;
    left:50%;
    top:50%;
    width:400px;
    height:300px;
    margin-top:-150px;
    margin-left:-200px;
}

[[http://demo.tutorialzine.com/2010/03/centering-div-vertically-and-horizontally/demo.html|source]]