An invalid keyword and an empty string will be handled as the anonymous value. This attribute's missing value default and invalid value default are both the auto state. See the online demos and the source codes below. Scaling it using HTML does not reduce the file size - it uses the same (larger) file and simply resizes it in the browser. How to Learn Programming Quickly for a College Student, 6 Web Design Tricks to Boost Your Conversion Rate, Top Summer Schools to Learn HTML, CSS JavaScript. To accomplish this we have to take two steps. Simple tags are all well and good, but what about adding attributes to tags? Website showing differently in windows xp and mobile. Notice that in this example, we didn’t use =, so “Hello, World!” is interpreted as a normal string, not Ruby code. Just try it. If you require that the class be something other than the underscored object’s class, you can implement the haml_object_ref method on the object. Not only that, but since div tags are so common, you can leave off the tag definition and have it default to %div. In the first example I’m going to present you how to position an image to the center of a container element, like a div, a paragraph or any other tag. # file: app/models/crazy_user.rb class CrazyUser < ActiveRecord::Base def haml_object_ref "a_crazy_user" end end -# file: app/views/users/show.haml %div[@user] Hello! “30x45” becomes width=“30” and height=“45”, and “50” This website and its third party tools are using cookies. That means any file in your app/views folder can be switched over to Haml by simply changing the extension of the file. A Template Engine for Ruby on Rails. The
tag is obsolete which means that it’s no longer supported in HTML5 but it’s still supported by the web browsers like Google Chrome. For more detail, see HTML event handler content attributes. Once the CSS code is applied to your .css file, stylesheet, or