JSFiddle - React, Tailwind, and code Playground

by arjun chaudhary

HTML

<div class="bvc">
  <div class="bevel tl"></div>
  <div class="content">Top right, bottom left</div>
  <div class="bevel br"></div>
</div>

CSS

.bvc { left: -15px }
    .bevel, .content { border-width: 15px }
    .bevel, .content { border-color: #000; border-style:solid; }

    .bvc {
        width: 90%; 
        margin: 0 auto;
        position: relative;
        margin-bottom: 15px;
        padding-right: 30px;
    }

    .bvc .tr, .bvc .tl, .bvc .br, .bvc .bl { height: 0px; width: 100%; }
    .bvc .tr, .bvc .tl { border-top: 0; }
    .bvc .br, .bvc .bl { border-bottom: 0; }
    .bvc .tr, .bvc .br { border-right-color: transparent; 
       position:relative;
     }
    .bvc .tl, .bvc .bl { border-left-color: transparent; 
       position:relative;
     }
    .bvc .tl:before {
        content:'';
        width:100%;
        height:0;
        position:absolute;
        top:-1px;
        left:-17px;
        z-index:-2;        
        border:16px solid red;
        border-left-color:transparent;
        border-top:0;        
        border-right-width:17px;
    }
    .bvc .br:before {
        content:'';
        width:100%;
        height:0;
        position:absolute;
        top:-15px;
        right:-16px;
        z-index:-2;        
        border:16px solid red;
        border-right-color:transparent;
        border-bottom:0;        
        border-left-width:17px; 
    }
    .no_bevel { height: 0px; width: 100%; border-bottom: 0; }

    .content {
        background: #000;
        color: #FFF;
        width: 100%;
        border-top: 0;
        border-bottom: 0;        
        position:relative;
    }
    .content:before {
        content:'';
        width:100%;
        height:100%;
        border:16px solid red;               
        position:absolute;
        border-bottom:none;
        border-top:none;
        left:-17px;
        border-left-width:17px;
        top:0;
        z-index:-2;
    }