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The Power of the Plus
Creative Solutions with CSS Selectors
@webcraftsman
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CSS is something you can
learn in a day (or a couple
of days) but takes a
lifetime to master.
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1 Man Team Bonnier Corp.
• Small Websites
• Control over the code
• Small CSS files
• Larger Websites
• CMS
• Larger CSS files
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http://net.tutplus.tutorials/html-css-techniques/the-30-css-selectors-you-must-memorize/
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Adjacent Sibling Combinator
E + F
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HTML
Heading
This is the paragraph I want to target
There are other paragraphs.
There are other paragraphs.
CSS h2 + p { color: black; } Adjacent Sibling CombinatorSlide 13
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Heading
This is the paragraph I want to target.
There are other paragraphs.
There are other paragraphs.
Adjacent Sibling Combinator
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Child Combinator
E > F
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HTML
-
Headphones
-
Media Players
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CSS
.site-map > li {
float: left;
margin-left: 15px;
overflow: hidden;
}
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Why had these selectors
not become a part of my
toolbox?
• Browser Support
• Control over my code
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My solution
.recipe-page .body h4 + p > b {
font-weight: normal;
}
.recipe-page .body h4 + div b {
font-weight: normal;
}
.recipe-page .body h4 ~ span {
font-weight: normal !important;
}
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.rating + .rating-buttons > .write-comment,
.comment-counts-text + .rating + .rating-buttons > .rate-review,
.comment-counts-text + .rating-buttons > .rate-review,
.comment-counts-text + .rating-buttons > .write-comment {
display: none;
}
My solution
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My solution
.comment-counts-number.over9999 + .comment-counts-text {
margin-top: 0;
}
.rating {
margin-left: 6px;
margin-top: 6px;
}
.comment-counts-text + .rating {
margin-top: 0;
}
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http://css-tricks.com/the-checkbox-hack/
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.vote-on-item input {
left:0;
height: 170px;
opacity: 0;
filter: alpha(opacity = 0);
outline: 0;
position: absolute;
top:0;
width: 186px;
z-index:2;
}
My solution
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.vote-on-item label { border: 5px solid #222222; }
.vote-on-item flag {display: none;}
.vote-on-item input:checked + label {
border-color:#cc000b;
}
.vote-on-item input:checked + label .flag {
background: transparent url(check.png) no-repeat;
display: block;
height: 66px;
left:7px;
position: absolute;
top:-5px;
width: 46px;
}
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Performance
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Performance
1.id (#myid)
2.class (.myclass)
3.tag (div, h1, p)
4.adjacent sibling (h1 + p)
5.child (ul > li)
6.descendent (li a)
7.universal (*)
8.attribute (a[rel="external"])
9.pseudo-class and pseudo element (a:hover, li:first)
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Performance
1.id (#myid)
2.class (.myclass)
3.tag (div, h1, p)
4.adjacent sibling (h1 + p)
5.child (ul > li)
6.descendent (li a)
7.universal (*)
8.attribute (a[rel="external"])
9.pseudo-class and pseudo element (a:hover, li:first)
http://csswizardry.com/2011/09/writing-efficient-css-selectors/
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http://net.tutplus.tutorials/html-css-techniques/the-30-css-selectors-you-must-memorize/
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http://speakerdeck.com/u/webcraftsman
http://jeffbridgforth.com/front-end-talk
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@webcraftsman
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Thank You