Свойство align-self

<style>
.example-1 {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 200px;
    outline: 2px dashed #ccc;
}
.example-1-item {
    width: 30%;
    background: #52c32d;
}
.example-1-item.self {
    align-self: stretch;
}
</style>

<div class="example-1">
    <div class="example-1-item">Текст<br>текст</div>
    <div class="example-1-item self">текст</div>
    <div class="example-1-item">Текст<br>текст</div>
</div>

<style>
.example-2 {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 200px;
    outline: 2px dashed #ccc;
}
.example-2-item {
    width: 30%;
    background: #52c32d;
}
.example-2-item.self {
    align-self: flex-start;
}
</style>

<div class="example-2">
    <div class="example-2-item">Текст<br>текст</div>
    <div class="example-2-item self">текст</div>
    <div class="example-2-item">Текст<br>текст</div>
</div>

<style>
.example-3 {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 200px;
    outline: 2px dashed #ccc;
}
.example-3-item {
    width: 30%;
    background: #52c32d;
}
.example-3-item.self {
    align-self: flex-end;
}
</style>

<div class="example-3">
    <div class="example-3-item">Текст<br>текст</div>
    <div class="example-3-item self">текст</div>
    <div class="example-3-item">Текст<br>текст</div>
</div>

<style>
.example-4 {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    height: 200px;
    outline: 2px dashed #ccc;
}
.example-4-item {
    width: 30%;
    background: #52c32d;
}
.example-4-item.self {
    align-self: center;
}
</style>

<div class="example-4">
    <div class="example-4-item">Текст<br>текст</div>
    <div class="example-4-item self">текст</div>
    <div class="example-4-item">Текст<br>текст</div>
</div>

<style>
.example-5 {
    display: grid;
    grid-template-columns: 100px 100px 100px;
    grid-column-gap: 15px;
    align-items: center;
    justify-content: space-between;
    height: 200px;
    outline: 2px dashed #ccc;
}
.example-5-item {
    background: #52c32d;
}
.example-5-item.self {
    align-self: start;   
}
</style>

<div class="example-5">
    <div class="example-5-item">Текст<br>текст</div>
    <div class="example-5-item self">текст</div>
    <div class="example-5-item">Текст<br>текст</div>
</div>

<style>
.example-6 {
    display: grid;
    grid-template-columns: 100px 100px 100px;
    grid-column-gap: 15px;
    align-items: center;
    justify-content: space-between;
    height: 200px;
    outline: 2px dashed #ccc;
}
.example-6-item {
    background: #52c32d;
}
.example-6-item.self {
    align-self: end;   
}
</style>

<div class="example-6">
    <div class="example-6-item">Текст<br>текст</div>
    <div class="example-6-item self">текст</div>
    <div class="example-6-item">Текст<br>текст</div>
</div>