how to place 2 div tags side by side code example

Example 1: how to align two divs side by side

.wrapper {
    display: flex;
    flex-wrap: wrap;
}

.wrapper>div {
    flex: 1 1 150px;
    height: 500px;
}

Example 2: place div side by side

<div style="width: 100%; overflow: hidden;">
    <div style="width: 600px; float: left;"> Left </div>
    <div style="margin-left: 620px;"> Right </div>
</div>