JSFiddle - React, Tailwind, and code Playground

HTML

<div class="contenido">
           <div class="power"></div>
           <div class="boton-vibracion"></div>
           <div class="masaudio"></div>
           <div class="menosaudio"></div>
            <div class="cuerpo-negro">
               <div class="camara"></div>
               <div class="bocina"></div>
                <div class="pantalla"></div>
                <div class="boton">
                    <div class="cuadrado"></div>
                </div>
            </div>
        </div>

CSS

body{
    background-color: #3A7C9F;
}
.contenido{
    width: 275px;
    height: 580px;
    margin: 0 auto;
    margin-top: 50px;
    margin-bottom: 50px;
    background-color: #4BB2E4;
    border-radius: 40px;
    box-shadow: -40px 35px 0px #26688B;
    position: relative;
}

.cuerpo-negro{
    height: 570px;
    width: 265px;
    background-color: black;
    border-radius: 40px;
    margin-top: 5px;
    margin-left: 5px;
    position: absolute;
    
}
.camara{
    height: 2px;
    width: 2px;
    margin: 0 auto;
    margin-top: 25px;
    background-color: #00C7FF;
    border: 2px solid #161616;
    border-radius: 50%;
}

.bocina{
    width: 45px;
    height: 5px;
    margin: auto;
    margin-top: 15px;
    background-color: #161616;
    border-radius: 3px;
}
.pantalla{
    width: 232px;
    height: 411px;
    background-color: #00C7FF;
    margin-left: 15px;
    margin-top: 25px;
    border: solid #1A1816;
    border-width: 2px;
}

.boton{
    height: 50px;
    width: 50px;
    border-radius: 50%;
    margin: 14px auto;
    border: solid #161616;
    border-width: 1px;
    background: linear-gradient(black, #080808);
}

.cuadrado{
    height: 15px;
    width: 15px;
    margin: 0 auto;
    margin-top: 16px;
    border-radius: 4px;
    border: solid #313131;
    border-width: 2px;
}

.power{
    width: 43px;
    height: 5px;
    float:right;
    margin-top: -5px;
    margin-right: 45px;
    border-top-left-radius: 3px;
    border-top-right-radius: 3px;
    background-color: #42a8d8;
    
}

.boton-vibracion{
    height: 25px;
    width: 3px;
    margin-top: 80px;
    margin-left: -3px;
    float: left;
    position: absolute;
    background-color: #42a8d8;
    border-top-left-radius: 3px;
    border-bottom-left-radius: 3px;
}

.masaudio{
    float: left;
    height: 40px;
    width: 4px;
    background-color: #42a8d8;
    margin-left: -4px;
    margin-top: 130px;
    border-top-left-radius: 3px;
    border-bottom-left-radius: 3px;
}

.menosaudio{
    float:...