Meteor is awesome for build dynamic web apps. However it's a "baremetal" without templates. On the other hand, Bootstrap is a powerful front-end framework with many beautiful themes. So we have to combine these two.
First of all we need to get the bootstrap.min.js from the latest precompiled version of bootstrap release package (bootstrap-x.x.x-dist.zip). Bootswatch provides free bootstrap themes. Download "bootstrap.min.css" file with clicking "Download" button of prefered theme, and put it under client folder of meteor app. Then all DOM element will be styled.
cd ~/docs/tmp
meteor create mywebapp
cd mywebapp
rm *.js *.css *.html
mkdir -p {server,client/{css,lib}}
wget https://github.com/twbs/bootstrap/releases/download/v3.3.1/bootstrap-3.3.1-dist.zip
unzip bootstrap-3.3.1-dist.zip -d bootstrap
cp bootstrap/dist/js/bootstrap.min.js client/lib
rm -rf bootstrap*
wget http://bootswatch.com/readable/bootstrap.min.css client/css/bootstrap.min.css
cat << EOF > client/mywebapp.html
<head>
<title>sousouzhan</title>
</head>
<body>
<h1>Welcome to Meteor!</h1>
{{> hello}}
</body>
<template name="hello">
<button type="button" class="btn btn-default">Click Me</button>
<div class="searchform">
<form role="form">
<div class="form-group">
<label for="exampleInputEmail1">Email address</label>
<input type="email" class="form-control" id="exampleInputEmail1" placeholder="Enter email">
</div>
<div class="form-group">
<label for="exampleInputPassword1">Password</label>
<input type="password" class="form-control" id="exampleInputPassword1" placeholder="Password">
</div>
<div class="form-group">
<label for="exampleInputFile">File input</label>
<input type="file" id="exampleInputFile">
<p class="help-block">Example block-level help text here.</p>
</div>
<div class="checkbox">
<label>
<input type="checkbox"> Check me out
</label>
</div>
<button type="submit" class="btn btn-default">Submit</button>
</form>
</div>
<p>You've pressed the button {{counter}} times.</p>
</template>
EOF
meteor
Then open http://localhost:3000 to view the result.