my z-index

__z-index: 12;
width: 360px;
padding: 15px;
border-radius: 12px;
background: rgba(255, 255, 255, 0.1);
box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
border-top: 1px solid rgba(255, 255, 255, 0.5);
border-left: 1px solid rgba(255, 255, 255, 0.5);
}
.container input[type="text"]{
width: 100%;
height: 100px;
margin: 0 3px;
outline: none;
border: none;
color: #fff;
font-size: 20px;
text-align: right;
padding-right: 10px;
pointer-events: none;
background: transparent;
}
.container input[type="button"]{
height: 65px;
color: #fff;
width: calc(100% / 4 - 5px);
background: transparent;
border-radius: 12px;
margin-top: 15px;
outline: none;
border: none;
font-size: 20px;
cursor: pointer;
transition: all 0.3s ease;
}
.container input[type="button"]:hover{
background: rgba(255, 255, 255, 0.1);
}