jquery-gray/css/main.css

Make an image grayscale in all browsers.

* {
  box-sizing: border-box
}

body {
  font-family: 'Open Sans', sans-serif;
  text-align: center;
  padding: 40px 0;
}

h1 {
  color: #bbb;
}

h1 small {
  font-size: 60%;
  display: block;
}

h2 {
  display: none;
}

h3 {
  font-size: 14px;
  text-align: left;
  background: #aaa;
  margin: 20px 0 25px;
  padding: 8px 10px;
  border-radius: 4px;
}

h3,
h3 a {
  color: #fff;
  text-decoration: none;
}

h3 a:hover:before {
  content: '#';
  font-size: 20px;
  color: #aaa;
  position: absolute;
  margin-left: -30px;
  margin-top: -4px;
}

.container {
  width: 80%;
  max-width: 500px;
  margin: 0 auto;
}

.row:before,
.row:after {
  content: " ";
  display: table;
}

.row:after {
  clear: both;
}

.row {
  *zoom: 1;
}

h3 + .col-half,
h3 + .col-half + .col-half {
  position: relative;
  height: 120px;
  top: 25px;
}

h3 + .col-half {
  padding-bottom: 80px;
}

pre {
  margin-top: 20px;
  display: inline-block;
  background-color: #f3f3f3;
  color: #888;
  border: 1px solid #ddd;
  font-size: 12px;
  line-height: 20px;
  overflow: auto;
  padding: 6px 10px;
  border-radius: 3px;
  text-align: left;
  max-width: 90%;
}

code {
  font-family: Menlo, Monaco, Consolas, "Courier New", monospace;
}

*[data-label]:before {
  content: attr(data-label);
  font-size: 15px;
  color: #999;
  display: block;
  position: absolute;
  text-align: center;
  top: -25px;
  width: 100%;
}

.github-iframe {
  margin-bottom: -9px;
}

.tweet,
.tweet > div > div {
  display: inline-block
}

.tweet {
  text-decoration: none;
  color: #fff;
  margin-left: 1em;
}

.tweet > div {
  border-radius: 5px;
  transition: 25ms ease-out;
  padding: 4px 8px;
  background-color: #55acee;
  border-color: #55acee;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

.tweet > div:hover,
.tweet > div:active {
  background-color: #2795e9;
  border-color: #2795e9;
}

.tweet > div > div {
  fill: #fff;
  stroke: none;
}

.tweet svg {
  margin-top: -4px;
  width: 1em;
  height: 1em;
  vertical-align: middle;
}

@media (min-width: 481px) {
  body {
    padding-top: 0;
  }

  h1 small {
    display: inline;
  }

  h2 {
    display: block;
  }

  h3 + .col-half,
  h3 + .col-half + .col-half {
    height: 77px;
    top: 0;
  }

  h3 + .col-half {
    padding-bottom: 0;
  }

  .container {
    max-width: 740px;
  }

  *[data-label]:before {
    content: none;
  }

  .col-half {
    float: left;
    width: 50%;
  }
}