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Cleaning up formatting. Adding usage and compatibility text

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Sean Corrales 2015-10-12 17:21:03 -05:00
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@ -20,16 +20,13 @@ relatively quickly. It does not provide any new styling options but rather
the tools to write your CSS more efficiently and make maintenance much
easier.
Sass files must be compiled into CSS. You can use any number of commandline
tools to compile Sass into CSS. Many IDEs also offer Sass compilation, as well.
```sass
/* Like CSS, Sass uses slash-asterisk to denote comments. Slash-asterisk comments
can span multiple lines. These comments will appear in your compiled CSS */
/* Like CSS, Sass uses slash-asterisk to denote comments. Slash-asterisk
comments can span multiple lines. These comments will appear
in your compiled CSS */
// Sass also supports single line comments that use double slashes. These comments will
// not be rendered in your compiled CSS
// Sass also supports single line comments that use double slashes. These
// comments will not be rendered in your compiled CSS
/* ####################
## VARIABLES
@ -52,8 +49,7 @@ h1 {
font-size: $headline-size;
}
/* After compiling the Sass files into CSS, you'll have the following code
in your generated CSS file */
/* Generated CSS result */
a {
color: #0000ff;
@ -91,7 +87,7 @@ article {
}
}
/* The above will compile into the following CSS */
/* Generated CSS result */
article {
font-size: 14px;
}
@ -115,16 +111,16 @@ article img {
}
/* It is recommended to not nest too deeply as this can cause issues with
specificity and make your CSS harder to work with and maintain. Best practices
recommend going no more than 3 levels deep when nesting. */
specificity and make your CSS harder to work with and maintain. Best
practices recommend going no more than 3 levels deep when nesting. */
/* ###############################
## REFERENCE PARENT SELECTORS
############################### */
/* Reference parent selectors are used when you're nesting statements and want to
reference the parent selector from within the nested statements. You can reference
a parent using & */
/* Reference parent selectors are used when you're nesting statements and want
to reference the parent selector from within the nested statements. You can
reference a parent using & */
a {
text-decoration: none;
@ -139,7 +135,7 @@ a {
}
}
/* The above Sass will compile into the CSS below */
/* Generated CSS result */
a {
text-decoration: none;
@ -160,8 +156,8 @@ body.noLinks a {
#################### */
/* Mixins allow you to define reusable chunks of CSS. They can take one or more
arguments to allow you to make reusable pieces of styling. Mixins can also
be very helpful when dealing with vendor prefixes. */
arguments to allow you to make reusable pieces of styling. Mixins very
helpful when dealing with vendor prefixes. */
@mixin form-button($color, $size, $border-radius) {
color: $color;
@ -175,7 +171,7 @@ body.noLinks a {
@include form-button(#0000ff, 16px, 4px);
}
/* The above mixin will compile into the following css */
/* Generated CSS result */
.user-form .submit {
color: #0000ff;
@ -187,9 +183,11 @@ body.noLinks a {
## FUNCTIONS
#################### */
/* Sass provides functions that can be used to accomplish a variety of tasks. Consider the following */
/* Sass provides functions that can be used to accomplish a variety of
tasks. Consider the following */
/* Functions can be invoked by using their name and passing in the required arguments */
/* Functions can be invoked by using their name and passing in the
required arguments */
body {
width: round(10.25px);
}
@ -198,7 +196,7 @@ body {
background-color: fade_out(#000000, 0.25)
}
/* The above Sass will compile into the following CSS */
/* Generated CSS result */
body {
width: 10px;
@ -208,14 +206,15 @@ body {
background-color: rgba(0, 0, 0, 0.75);
}
/* You may also define your own functions. Functions are very similar to mixins. When trying
to choose between a function or a mixin, remember that functions are best for returning
values while mixins are best for generating CSS while functions are better for logic that
might be used throughout your Sass code. The examples in the Math Operators' section are
ideal candidates for becoming a reusable function. */
/* You may also define your own functions. Functions are very similar to
mixins. When trying to choose between a function or a mixin, remember
that functions are best for returning values while mixins are best for
generating CSS while functions are better for logic that might be used
throughout your Sass code. The examples in the Math Operators' section
are ideal candidates for becoming a reusable function. */
/* This function will take a target size and the parent size and calculate and return
the percentage */
/* This function will take a target size and the parent size and calculate
and return the percentage */
@function calculate-percentage($target-size, $parent-size) {
@return $target-size / $parent-size * 100%;
@ -231,7 +230,7 @@ $main-content: calculate-percentage(600px, 960px);
width: calculate-percentage(300px, 960px);
}
/* The above Sass will compile into the following CSS */
/* Generated CSS result */
.main-content {
width: 62.5%;
@ -241,9 +240,9 @@ $main-content: calculate-percentage(600px, 960px);
width: 31.25%;
}
/* ####################
/* #####################
## EXTEND/INHERITANCE
#################### */
##################### */
/* Sass allows you to extend an existing CSS statement. This makes it
very easy to write CSS that does not violate DRY principles. Any
@ -271,7 +270,7 @@ $main-content: calculate-percentage(600px, 960px);
background-color: #ccc;
}
/* The above Sass will be compile into the following CSS */
/* Generated CSS result */
.content-window,
.message-window,
@ -306,10 +305,10 @@ $main-content: calculate-percentage(600px, 960px);
## PLACEHOLDER SELECTORS
######################### */
/* Placeholders are useful when creating a CSS statement to extend. If you wanted to create
a CSS statement that was exclusively used with @extend, you can do so using a placeholder.
Placeholders begin with a '%' instead of '.' or '#'. Placeholders will not appear in the
compiled CSS. */
/* Placeholders are useful when creating a CSS statement to extend. If you
wanted to create a CSS statement that was exclusively used with @extend,
you can do so using a placeholder. Placeholders begin with a '%' instead
of '.' or '#'. Placeholders will not appear in the compiled CSS. */
%content-window {
font-size: 14px;
@ -323,7 +322,7 @@ $main-content: calculate-percentage(600px, 960px);
background-color: #0000ff;
}
/* The above Sass would compile to the following CSS */
/* Generated CSS result */
.message-window {
font-size: 14px;
@ -369,7 +368,7 @@ body {
width: $gutter;
}
/* The above Sass would compile to the CSS below */
/* Generated CSS result */
body {
width: 100%;
@ -391,9 +390,15 @@ body {
## Usage
Sass files must be compiled into CSS. You can use any number of commandline
tools to compile Sass into CSS. Many IDEs also offer Sass compilation, as well.
[Compass](http://compass-style.org/) is one of the more popular tools for Sass compilation.
## Compatibility
Sass can be used in any project as long as you have something to compile it
into CSS. You'll want to verify that the CSS you're using is compatible
with your target browsers.
## Further Reading
[QuirksMode CSS](http://www.quirksmode.org/css/) and [CanIUse](http://caniuse.com) great resources for checking compatibility.