diff --git a/v4.html b/v4.html
index 0f1ebcbf..823fa9e0 100644
--- a/v4.html
+++ b/v4.html
@@ -215,13 +215,13 @@ <h2>Carousel</h2>
           </ol>
           <div class="carousel-inner" role="listbox">
             <div class="carousel-item active">
-              <img class="d-block img-fluid" alt="First slide [800x400]" src="data:image/svg+xml;charset=UTF-8,%3Csvg%20width%3D%221056%22%20height%3D%22400%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201056%20400%22%20preserveAspectRatio%3D%22none%22%3E%3Cdefs%3E%3Cstyle%20type%3D%22text%2Fcss%22%3E%23holder_15a0b420a71%20text%20%7B%20fill%3A%23555%3Bfont-weight%3Abold%3Bfont-family%3AArial%2C%20Helvetica%2C%20Open%20Sans%2C%20sans-serif%2C%20monospace%3Bfont-size%3A53pt%20%7D%20%3C%2Fstyle%3E%3C%2Fdefs%3E%3Cg%20id%3D%22holder_15a0b420a71%22%3E%3Crect%20width%3D%221056%22%20height%3D%22400%22%20fill%3D%22%23777%22%3E%3C%2Frect%3E%3Cg%3E%3Ctext%20x%3D%22361.1171875%22%20y%3D%22223.7%22%3EFirst%20slide%3C%2Ftext%3E%3C%2Fg%3E%3C%2Fg%3E%3C%2Fsvg%3E">
+              <img class="d-block w-100" alt="First slide [800x400]" src="data:image/svg+xml;charset=UTF-8,%3Csvg%20width%3D%221056%22%20height%3D%22400%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201056%20400%22%20preserveAspectRatio%3D%22none%22%3E%3Cdefs%3E%3Cstyle%20type%3D%22text%2Fcss%22%3E%23holder_15a0b420a71%20text%20%7B%20fill%3A%23555%3Bfont-weight%3Abold%3Bfont-family%3AArial%2C%20Helvetica%2C%20Open%20Sans%2C%20sans-serif%2C%20monospace%3Bfont-size%3A53pt%20%7D%20%3C%2Fstyle%3E%3C%2Fdefs%3E%3Cg%20id%3D%22holder_15a0b420a71%22%3E%3Crect%20width%3D%221056%22%20height%3D%22400%22%20fill%3D%22%23777%22%3E%3C%2Frect%3E%3Cg%3E%3Ctext%20x%3D%22361.1171875%22%20y%3D%22223.7%22%3EFirst%20slide%3C%2Ftext%3E%3C%2Fg%3E%3C%2Fg%3E%3C%2Fsvg%3E">
             </div>
             <div class="carousel-item">
-              <img class="d-block img-fluid" alt="Second slide [800x400]" src="data:image/svg+xml;charset=UTF-8,%3Csvg%20width%3D%221056%22%20height%3D%22400%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201056%20400%22%20preserveAspectRatio%3D%22none%22%3E%3Cdefs%3E%3Cstyle%20type%3D%22text%2Fcss%22%3E%23holder_15a0b420a75%20text%20%7B%20fill%3A%23444%3Bfont-weight%3Abold%3Bfont-family%3AArial%2C%20Helvetica%2C%20Open%20Sans%2C%20sans-serif%2C%20monospace%3Bfont-size%3A53pt%20%7D%20%3C%2Fstyle%3E%3C%2Fdefs%3E%3Cg%20id%3D%22holder_15a0b420a75%22%3E%3Crect%20width%3D%221056%22%20height%3D%22400%22%20fill%3D%22%23666%22%3E%3C%2Frect%3E%3Cg%3E%3Ctext%20x%3D%22310.0703125%22%20y%3D%22223.7%22%3ESecond%20slide%3C%2Ftext%3E%3C%2Fg%3E%3C%2Fg%3E%3C%2Fsvg%3E">
+              <img class="d-block w-100" alt="Second slide [800x400]" src="data:image/svg+xml;charset=UTF-8,%3Csvg%20width%3D%221056%22%20height%3D%22400%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201056%20400%22%20preserveAspectRatio%3D%22none%22%3E%3Cdefs%3E%3Cstyle%20type%3D%22text%2Fcss%22%3E%23holder_15a0b420a75%20text%20%7B%20fill%3A%23444%3Bfont-weight%3Abold%3Bfont-family%3AArial%2C%20Helvetica%2C%20Open%20Sans%2C%20sans-serif%2C%20monospace%3Bfont-size%3A53pt%20%7D%20%3C%2Fstyle%3E%3C%2Fdefs%3E%3Cg%20id%3D%22holder_15a0b420a75%22%3E%3Crect%20width%3D%221056%22%20height%3D%22400%22%20fill%3D%22%23666%22%3E%3C%2Frect%3E%3Cg%3E%3Ctext%20x%3D%22310.0703125%22%20y%3D%22223.7%22%3ESecond%20slide%3C%2Ftext%3E%3C%2Fg%3E%3C%2Fg%3E%3C%2Fsvg%3E">
             </div>
             <div class="carousel-item">
-              <img class="d-block img-fluid" alt="Third slide [800x400]" src="data:image/svg+xml;charset=UTF-8,%3Csvg%20width%3D%221056%22%20height%3D%22400%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201056%20400%22%20preserveAspectRatio%3D%22none%22%3E%3Cdefs%3E%3Cstyle%20type%3D%22text%2Fcss%22%3E%23holder_15a0b420a79%20text%20%7B%20fill%3A%23333%3Bfont-weight%3Abold%3Bfont-family%3AArial%2C%20Helvetica%2C%20Open%20Sans%2C%20sans-serif%2C%20monospace%3Bfont-size%3A53pt%20%7D%20%3C%2Fstyle%3E%3C%2Fdefs%3E%3Cg%20id%3D%22holder_15a0b420a79%22%3E%3Crect%20width%3D%221056%22%20height%3D%22400%22%20fill%3D%22%23555%22%3E%3C%2Frect%3E%3Cg%3E%3Ctext%20x%3D%22349.3671875%22%20y%3D%22223.7%22%3EThird%20slide%3C%2Ftext%3E%3C%2Fg%3E%3C%2Fg%3E%3C%2Fsvg%3E">
+              <img class="d-block w-100" alt="Third slide [800x400]" src="data:image/svg+xml;charset=UTF-8,%3Csvg%20width%3D%221056%22%20height%3D%22400%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%201056%20400%22%20preserveAspectRatio%3D%22none%22%3E%3Cdefs%3E%3Cstyle%20type%3D%22text%2Fcss%22%3E%23holder_15a0b420a79%20text%20%7B%20fill%3A%23333%3Bfont-weight%3Abold%3Bfont-family%3AArial%2C%20Helvetica%2C%20Open%20Sans%2C%20sans-serif%2C%20monospace%3Bfont-size%3A53pt%20%7D%20%3C%2Fstyle%3E%3C%2Fdefs%3E%3Cg%20id%3D%22holder_15a0b420a79%22%3E%3Crect%20width%3D%221056%22%20height%3D%22400%22%20fill%3D%22%23555%22%3E%3C%2Frect%3E%3Cg%3E%3Ctext%20x%3D%22349.3671875%22%20y%3D%22223.7%22%3EThird%20slide%3C%2Ftext%3E%3C%2Fg%3E%3C%2Fg%3E%3C%2Fsvg%3E">
             </div>
           </div>
           <a class="carousel-control-prev" href="#carouselExampleIndicators" role="button" data-slide="prev">