The phrase "a webpage with a" is correct and usable in written English.
It can be used when describing a webpage that contains a specific feature, element, or content.
Example: "I found a webpage with a detailed tutorial on how to bake a cake."
Alternatives: "a site featuring a" or "a page containing a".
In fact, it has already been attempted: A team from Intel and the University of California, Berkeley, developed Dispute Finder, a plug-in for web browsers that was released in 2009 and would alert users when they opened a webpage with a disputed claim.
It won't just be a webpage with a touchscreen — it will be a living book.
Users drag a bookmarklet to their browser, then click the link anytime they're on a webpage with a place they'd like to visit, and the place gets saved to their account.
The patent goes on to detail potential extensions of the concept of transparent texting — i.e. beyond an iMessage-style texting use-case, including replacing the background of a webpage with a live video feed, so that the text of a website is overlaid over whatever environs the device user is moving through.
As you can see in the screenshot above, when the user clicks the new Pin It button on a webpage with a number of images, they're shown a message that asks them to "Choose a Pin to Save," then they click on the one they want to share.
The results are returned as a webpage with a tabular output of the BLAST program.
But as of Wednesday, that "scientific" exit poll was just a webpage with an icon for each of the four presidential candidates, ostensibly designed for the volunteer exit pollers to click on when they get an answer from a voter.
Here is a webpage with an increasing number of ideas and programs.
Sometimes there's a webpage with additional content read over, sometimes a simulation.
SolarSPELL is a portable, ruggedized, solar-powered digital library that broadcasts a webpage with open-access educational content over an offline WiFi hotspot, content that is curated for a particular audience in a specified locality in this case, for schoolchildren and teachers in remote locations.
I was told to click on my bank's icon on a webpage with TalkTalk's logo on top and open my account details.
