bootstrap iframe

1<!-- 21:9 aspect ratio -->
2<div class="embed-responsive embed-responsive-21by9">
3  <iframe class="embed-responsive-item" src="..."></iframe>
4</div>
5
6<!-- 16:9 aspect ratio -->
7<div class="embed-responsive embed-responsive-16by9">
8  <iframe class="embed-responsive-item" src="..."></iframe>
9</div>
10
11<!-- 4:3 aspect ratio -->
12<div class="embed-responsive embed-responsive-4by3">
13  <iframe class="embed-responsive-item" src="..."></iframe>
14</div>
15
16<!-- 1:1 aspect ratio -->
17<div class="embed-responsive embed-responsive-1by1">
18  <iframe class="embed-responsive-item" src="..."></iframe>
19</div>

1Copy Code<pre><div class="iframe-container">
2  <iframe width="650" height="180" style="border: 2px solid #cccccc;" src="https://thingspeak.com/channels/929272/charts/1?bgcolor=%23ffffff&color=%23d62020&dynamic=true&results=60&type=line&update=15"></iframe>
3</div>
4<br/>
5<div class="iframe-container">
6  <iframe width="650" height="180" style="border: 2px solid #cccccc;" src="https://thingspeak.com/channels/929272/charts/2?bgcolor=%23ffffff&color=%23d62020&dynamic=true&results=60&type=line&update=15"></iframe>
7</div>
8<br/>
9<div class="iframe-container">
10  <iframe width="650" height="180" style="border: 2px solid #cccccc;" src="https://thingspeak.com/channels/929272/charts/8?bgcolor=%23ffffff&color=%23d62020&dynamic=true&results=60&type=line&update=15"></iframe>
11</div>
12<div class="wrapper" align="center">
13  <div class="btn-group" id="toggle_event_editing">
14    <button type="button" class="btn btn-danger locked_active">OFF</button>
15    <button type="button" class="btn btn-success unlocked_inactive">ON</button>
16  </div>
17  <div class="alert alert-info" id="switch_status">Switched off.</div>
18</div>
19<br/>