Bootstrap中的文本区域自动高度

Question

I am Developing an Hybrid app using Cordova. I am facing the problem to make Height of Text Area as 50% which will give my app a uniform look on all devices like Tablet,cell phones etc. I tried to google it and try all stuff but did not find a proper solution. Can some one please help me ?

<textarea cols="50%">
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</textarea>

I tried some thing like this

Answer 1

well you need to set the height, not the width. the cols sets the width and the attribute rows set the height.

use this code to set the height to 50% of the viewport.

<textarea rows="50%">
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</textarea>

 <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet"/> <textarea rows="50%"> At w3schools.com you will learn how to make a website. We offer free tutorials in all web development technologies. </textarea>