<div class="container method-1">
    <span>This is a description</span>
    <img src="example.jpg" width="60">
</div>
<div class="container method-2">
    <span>This is a description</span>
    <img src="example.jpg" width="60">
</div>
<div class="container method-3">
    <span>This is a description</span>
    <img src="example.jpg" width="60">
</div>
<div class="container method-4">
    <span>This is a description</span>
    <img src="example.jpg" width="60">
</div>
<div class="container method-5">
    <span>This is a description</span>
    <img src="example.jpg" width="60">
</div>
<div class="container method-6">
    <span>This is a description</span>
    <img src="example.jpg" width="60">
</div>
<style>
    .container {
        background-color: rgb(0, 218, 218);
        height: 50px;
        margin-bottom: 5px;
    }
    .container.method-1 {
        display: flex;
    }
    .container.method-1 span {
        align-self: center;
    }
    .container.method-1 img {
        align-self: center;
    }
    .container.method-2 span {
        display: block;
        padding-top: 16.165px;
    }
    .container.method-3 {
        box-sizing: border-box;
        padding-top: 16.165px;
    }
    .container.method-4 {
        display: table;
        width: 100%;
    }
    .container.method-4 span {
        display: table-cell;
        vertical-align: middle;
    }
    .container.method-5 img {
        vertical-align: middle;
    }
    .container.method-5 span {
        line-height: 50px;
        vertical-align: middle;
    }
    .container.method-6 {
        position: relative;
    }
    .container.method-6 span {
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
    }
</style>