for my tutorials

1

button#submit {   }

.side-bar-menu#homeIcon {   }

2

#submit {  }

#homeIcon {  }

3

p.title {  }

4

.title {  }

5

section[data-toggle=”true”] > div > li > a {   }

input[type=”checkbox”]

6

. section-data-toggle {  }
 
.input-checkbox {  }

7

html body ul li a {   }

table > thead > tbody {  }

8

.link {   }

.my-tbody {   }

example_css_rule

/* ID rule is Fastest */
button#backButton {  }
#urlBar[type="autocomplete"] {  }
ul > li > a#item {  }
#container {   } 

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/* class-based rule */
button.submit {  }
.input-md {  }	/* A  */
menuitem > .menu-left[checked="true"] {  }

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/* Tags rule */
td {  }
input[type="checkbox"] {  }
ul li a {  }

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/* universal is slow */
[hidden="true"] {  }
* {  } /* Slowest */
tree > [collapsed="true"] {  }