JSFiddle - React, Tailwind, and code Playground

by burimsyla

HTML

<div style="width:auto">
<div class="rhombus">
<input name="name" placeholder="Ваше имя"/>
</div>

</div>

CSS

div {
  display: flex;
  flex-wrap: wrap;
  margin: 0;
  padding: 30px 20px;
  border: none;
  font-family: sans-serif;
}
div .header {
  flex-basis: 100%;
  margin: -10px 0 10px;
  text-align: center;
  color: #1E9BAF;
}
div input,
div button {
  flex-grow: 1;
  height: 30px;
  margin: 0 5px;
  padding: 0 5px;
  box-sizing: border-box;
  background-color:#1E9BAF;
 border: 0;
}

.rhombus {
  position: relative;
  -webkit-perspective: 600px;
  perspective: 600px;
  border-radius: 10px;
}
.rhombus:before,
.rhombus:after {
  content: "";
  position: absolute;
  left: 0;
  height: 50%;
  width: 100%;
  background-color: #1E9BAF;
  z-index: -1;
}
.rhombus:before {
  top: 0;
  -webkit-transform: rotateX(30deg);
  -webkit-transform-origin: center bottom;
  -ms-transform: rotateX(30deg);
  -ms-transform-origin: center bottom;
  transform: rotateX(30deg);
  transform-origin: center bottom;
  /*box-shadow: 3px 5px #DDD;*/
}
.rhombus:after {
  bottom: 0;
  -webkit-transform: rotateX(-30deg);
  -webkit-transform-origin: center top;
  -ms-transform: rotateX(-30deg);
  -ms-transform-origin: center top;
  transform: rotateX(-30deg);
  transform-origin: center top;
  /*box-shadow: 5px 5px #DDD;*/
}