JSFiddle - React, Tailwind, and code Playground

HTML

<div class="sx">
    <label>Cognome:</label>
    <input type="text" id="input1" name="cognome" />
    <div class="dx" id="controllo1">
        <img src=" " />
    </div>
</div>
<div class="clear"></div>
<div class="sx">
    <label>Nome:</label>
    <input type="text" id="input2" name="nome" />
    <div class="dx" id="controllo2">
        <img src=" " />
    </div>
</div>
<div class="clear"></div>
<div class="sx">
    <label>Data di nascita:</label>
    <input type="text" id="input3" name="nascita" />
    <div class="dx" id="controllo3">
        <img src=" " />
    </div>
</div>

CSS

.sx {
    float:left;
}
.dx {
    float:right;
}
.clear {
    clear:both;
    padding-top:10px;
}
.dx img {
    margin-left:8px;
    border:1px solid green;
    height:18px;
    width:18px;
}