How to Add CSS Code in Blogger Theme
First Code :
/*--------YT-Responsive--css------*/
.ytiframe{
position: relative;
width: 100%;
padding-bottom: 56.25%;
height: 0;
}
.ytiframe iframe{
position: absolute;
top:0;
left: 0;
width: 100%;
height: 100%;
}
/*---xxx-----YT--Responsive-css---xxxx----*/
Second Code :
<div class="ytiframe"><iframe allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen="" frameborder="0" height="auto" src="https://www.youtube-nocookie.com/embed/TechdoctorPK?&autoplay=1&rel=0" title="YouTube video player" width="100%"></iframe></div>
