<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
<!------ Include the above in your HEAD tag ---------->
<div class="row">
<div class="junt">
<div id="triangulo-para-direita">
<div id="triangulo2"></div>
</div>
<div id="triangulo-para-direita1">
<div id="triangulo3"></div>
</div>
</div>
</div>
</div>
body {
background-color: #ccc;
}
#triangulo-para-direita {
resize: horizontal;
position: relative;
border-top: 450px solid transparent;
border-left: 550px solid rgba(0,0,0,0.04);
border-bottom: 450px solid transparent;
background: linear-gradient(rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.1));
}
#triangulo2 {
resize: horizontal;
position: absolute;
top: -410px;
right: 0;
border-top: 410px solid transparent;
border-left: 505px solid rgba(255,255,255,1);
border-bottom: 410px solid transparent;
border-right: 30px solid transparent;
background: linear-gradient(rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 1));
}
#triangulo-para-direita1 {
resize: horizontal;
position: relative;
border-top: 450px solid transparent;
border-left: 550px solid rgba(0,0,0,0.04);
border-bottom: 450px solid transparent;
background: linear-gradient(rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.1));
}
#triangulo3 {
resize: vertical;
position: absolute;
top: -410px;
right: 0;
border-top: 410px solid transparent;
border-left: 505px solid rgba(255,255,255,1);
border-bottom: 410px solid transparent;
border-right: 30px solid transparent;
background: linear-gradient(rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 1));
}
