body,html {
    min-height: 100%;
}

.input-icon {
    position: relative;
}

.input-icon i {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    padding: 9px 8px;
    color: #aaa;
    transition: 0.3s;
}

.input-icon button {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    padding: 9px 8px;
    color: #000;
    background: none;
    border: none;
    outline: none;
    cursor: pointer;
    transition: 0.3s;
}

.input-icon input {
    padding-left: 40px;
}