?> Background：:point_right: calc()
<script v-pre type="text/x-template" id="fluidFixed"> <style> main{ width: 100%; } h2.title { color: white; margin-top: 1em; margin-bottom: 1em; } header{ background: #b4a078; color: white; } footer{ background: rgba(180,160,120,.05); } .main > header, .main > section, .main > footer{ padding: .1em calc(50% - 329px); text-align: justify; hyphens: auto; } </style>Set the left and right padding of the element to 50% of the width of the parent element minus half of the content of the equal width. No need to set the width ~
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CSS Tricks need to know for web developer.
<script> </script> </script> <iframe width="100%" height="436px" frameborder="0" src="https://caniuse.bitsofco.de/embed/index.html?feat=calc&periods=future_1,current,past_1,past_2,past_3&accessible-colours=false"> </iframe>