Header (Image Overlay)
The header is a slightly more complex module. It allows for the displaying of two background images, one for mobile, one for desktop resolutions (as this may work better than trying to make just one image fit such different screen sizes), though this is not mandatory.
The background can also be a 16:9 (and 9:16 for mobile) video (from vimeo only, as they allow removal of UI elements with their embedded videos).
Additionally, another image can be uploaded to be displayed on top of the background images, such as a company logo. The overlay-image's position can be customised deeply.
The mobile version of the header allows for three different image heights, depending on the best content fit.
The header is traditionally the first module on a page with a header, but could be placed anywhere on a site also.
Enabling / Disabling
Like all modules, this module can be enabled / disabled. Please see the corresponding section of the documentation to find out more about this functionality.
This module allows for using an image or a (Vimeo) video as background. The sections below go into detail about the options and differences.
Background Section (Video)
When the background Image / Video option has been set to ‘video', the following options appear:
Video Scale (Mobile)
This option allows you to scale the video player up (in other words, to ‘zoom' into the video). This can help eliminate letterboxing (or black bars around the video), in case the video doesn't quite fit the space. There is a mobile and desktop option for the video, to make it easier to avoid having to use this option much. If, for example, you have only been supplied with a portrait-orientation video, you'll need a zoom factor of 3.2 for the desktop video, for it to fill the whole space.
Video Scale (Desktop)
Same as the video scale for mobile.
Video ID (Mobile)
The Vimeo video ID of your video on mobile. Find out how you can get that ID here.
This video should be 9:16 (portrait) aspect ratio. So that's 2160x3840 in 4K, 1080x1920p in full HD or 720x1280p in just HD.
Video ID (Desktop)
The Vimeo video ID of your video on desktop. Find out how you can get that ID here.
This video should be 16:9 (landscape) aspect ratio. So that's 3840x2160 in 4K, 1920x1080p in full HD or 1280x720p in just HD.
Background Section (Image)
When the background Image / Video option has been set to ‘image', the following options appear:
The header module's background image on desktop. This image will be shown at screen resolutions of 900px and above, typically laptops and desktop computers. Read up on changing images here.
Double Desktop Image
There is a double-image variation of this header, where two images can be used as the background to a header, sitting side by side. Read up on changing images here.
The header module's background image on mobile. This option allows you to specify an image that is shown below 900px screen width (mobile / tablet devices). It is not necessary to define a different image here. In our example, we have decided to use the same background twice. In some cases, however, it can be beneficial to provide content for mobile devices that fits the space better. This is often a question of experimentation, to arrive at the best solution for your website. Read up on changing images here.
The overlay element sits on top of the header's background image:
Enabling the Overlay
Here, the overlay can be switched on or off.
The header module's overlay image. Read up on changing images here. For overlay images it is recommended to use image formats that support transparency, such as .PNG, .GIF or .SVG. (Our example uses a .PNG image) Overlaying an image with a filled block-colour type background would not look as well-designed.
The overlay can be placed in any 9 sectors of the header. Please note that on mobile, left / right placements are replaced with a central placement. Thus, only top / middle / bottom placements are taken into account on mobile. This is due to the narrow screen widths of mobile devices.
Left Middle Placement Example
Left Middle Placement Online
Overlay Width - Desktop
This determines the maximum width of the image overlaid on top of the header's background image (as percentage of the total screen width). The height of the overlay image will scale automatically, preserving the aspect ratio (i.e. your image will never be skewed by adjusting this value)
Overlay Width - Mobile
The overlay image can have a different width on mobile, as we have found that the smaller screen-sizes of mobile devices need special consideration, especially for finely detailed graphics.
Overlay Side Margin
This determines how far the overlay image will be from the edge of the screen (as percentage of the total screen width) when you have chosen one of the left or right squares in the overlay position section.
Overlay Top Margin
This determines how far the overlay image will be from the top / bottom of the screen when you have chosen one of the top / bottom squares in the overlay position section. Note: This value is in pixels, not percent, due to the way websites position elements. The side margin / width values are percentages of the screen width.
If your tint opacity is higher than 0, you may choose the colour of the tint to apply to the background image. This feature exists, as some graphics need additional contrast to the background they sit on top of. Here, you can define a tint colour to ‘knock back' the background image, giving more emphasis to the overlay.
Green Tint Example:
This determines whether you would like to apply a tint to the background image. In our example, we have chosen a black tint at 0.4 opacity (maximum is 1, minimum is 0, i.e. no tint), to ‘fade' the background somewhat, giving more contrast to the overlaid logo.
Mobile Image Shape
Because mobile devices have such a wide range of screen sizes, and there is such a variety of imagery that could be used with the header, we allow for three different aspect ratios of header images below 900px screen width (which is a typical phone / tablet resolution).
If the mobile image shape option is set to either Landscape or Square, the "Mobile Background" option appears. With Landscape or Square mobile image shapes, the image overlay moves below the (mobile) header background image, into its own area with a customisable background colour.
The header chevron is a clickable item, which automatically moves the page down to the module below the header. The chevron is displayed for the following configurations:
Mobile image shape: Portrait on desktop and mobile Mobile image shape: Square on desktop only Mobile image shape: Landscape on desktop only
This is the chevron:
The chevron colour and rollover (when a visitor hovers over the chevron, this is the colour it will be) colour can be customised as well.