How to build a perfect <img>

by Jono Alderson

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#smx @jonoalderson How to make a perfect website

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#smx @jonoalderson Photo by Max Baskakov on Unsplash

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#smx @jonoalderson

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#smx @jonoalderson A sad cat

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#smx @jonoalderson A sad cat

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#smx @jonoalderson .app

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#smx @jonoalderson

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#smx @jonoalderson youtube.com/watch?v=F1kYBnY6mwg

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#smx @jonoalderson A sad cat

500px

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#smx @jonoalderson A sad cat

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#smx @jonoalderson A sad cat

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#smx @jonoalderson A sad cat

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#smx @jonoalderson A sad cat

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#smx @jonoalderson A sad cat

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#smx @jonoalderson A sad cat

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#smx @jonoalderson [what if we want him to be responsive?]

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#smx @jonoalderson

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#smx @jonoalderson A sad cat

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#smx @jonoalderson

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#smx @jonoalderson

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#smx @jonoalderson [what if we want him to be responsive?]

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#smx @jonoalderson A sad cat

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#smx @jonoalderson A sad cat

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#smx @jonoalderson A sad cat

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#smx @jonoalderson A sad cat

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#smx @jonoalderson A sad cat

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#smx @jonoalderson [what if we want him to be responsive?]

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#smx @jonoalderson .bob { width: 100%; height: auto; max-width: 500px; }

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#smx @jonoalderson Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nunc hendrerit ante ultrices, gravida dolor ac, aliquet quam. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos. Aenean semper suscipit efﬁcitur. Cras lectus metus, tincidunt at tellus quis, eleifend ultrices urna. Jono’s fun example webpage

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#smx @jonoalderson A sad cat

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#smx @jonoalderson A sad cat

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#smx @jonoalderson https://css-tricks.com/aspect-ratio-boxes/

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#smx @jonoalderson https://css-tricks.com/aspect-ratio-boxes/

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#smx @jonoalderson A sad cat

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#smx @jonoalderson A sad cat

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#smx @jonoalderson A sad cat

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#smx @jonoalderson https://github.com/malchata/yall.js/

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#smx @jonoalderson

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#smx @jonoalderson A sad cat

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#smx @jonoalderson A sad cat

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#smx @jonoalderson A sad cat

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#smx @jonoalderson A sad cat

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#smx @jonoalderson A sad cat

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#smx @jonoalderson A sad cat

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#smx @jonoalderson document.documentElement.classList.remove("no -js") .no-js .lazy { display: none; } [...] [...]

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#smx @jonoalderson .lazy { will-change: opacity; opacity: 0; transition: 1s opacity ease-out; } .lazy.loaded { opacity: 1; }

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#smx @jonoalderson A sad cat

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#smx @jonoalderson A sad cat

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#smx @jonoalderson A sad cat

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#smx @jonoalderson

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#smx @jonoalderson A sad cat

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#smx @jonoalderson Jono’s fun example webpage [what if we want him to be responsive?]

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#smx @jonoalderson A sad cat

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#smx @jonoalderson Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nunc hendrerit ante ultrices, gravida dolor ac, aliquet quam. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per... Jono’s fun example webpage 1200px 300px 280px

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#smx @jonoalderson

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#smx @jonoalderson

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#smx @jonoalderson Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nunc hendrerit ante ultrices, gravida dolor ac, aliquet quam. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per... Jono’s fun example webpage 1200px 300px 280px

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#smx @jonoalderson click for cats

click for cats

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#smx @jonoalderson click for cats .cat-icon::after { --icon: url(data:image/svg+xml,[SVG_GOES_HERE]); line-height: 1.25rem; display: inline-block; width: 1.25rem; height: 1.25rem; content: ""; background: currentColor; -webkit-mask-image: var(--icon); -webkit-mask-size: 1.25rem 1.25rem; -webkit-mask-repeat: no-repeat; -webkit-mask-position: center center; background-size: 100% 100%; }

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#smx @jonoalderson Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nunc hendrerit ante ultrices, gravida dolor ac, aliquet quam. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per... Jono’s fun example webpage 1200px 300px 280px click for cats

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#smx @jonoalderson

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#smx @jonoalderson

A sad cat. Photo by Max Baskakov A sad cat. Photo by Max Baskakov

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#smx @jonoalderson <ﬁgure>

<figcaption>A sad cat. Photo by Max Baskakovfigcaption> figure> A sad cat. Photo by Max Baskakov

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#smx @jonoalderson youtube.com/watch?v=flf2vS0IoRs

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#smx @jonoalderson cloudinary.com/blog/evolution_of_img_gif_without_the_gif

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#smx @jonoalderson Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nunc hendrerit ante ultrices, gravida dolor ac, aliquet quam. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per... Jono’s fun example webpage 300px click for cats A sad cat. Photo by Max Baskakov A sad cat. Photo by Max Baskakov

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#smx @jonoalderson Take a breath.

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#smx @jonoalderson My point isn’t, “images are complex”

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#smx @jonoalderson developers.google.com/web/fundamentals/design-and-ux/responsive/images

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#smx @jonoalderson My point isn’t, “go learn all of this” or “make your images perfect”

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#smx @jonoalderson How to make a perfect load a font

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#smx @jonoalderson Hello world

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#smx @jonoalderson @font-face { font-family:'Rubik'; src: url('/fonts/rubik.ttf’); } Hello world

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#smx @jonoalderson @font-face { font-family:'Rubik'; font-style:normal; font-weight:400; font-display:swap; unicode-range:U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; src:local('Rubik'), local('Rubik-Regular'), url('/fonts/rubik-latin-400.woff2?ver=1606167081') format('woff2'); } @font-face { font-family:'Rubik'; font-style:normal; font-weight:700; font-display:swap; unicode-range:U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; src:local('Rubik Bold'), local('Rubik-Bold'), url('/fonts/rubik-latin-700.woff2?ver=1606167081') format('woff2'); } @font-face { font-family:'Rubik'; font-style:normal; font-weight:400; font-display:swap; unicode-range:U+0100-024F, U+0259, U+1E00-1EFF, U+2020, U+20A0-20AB, U+20AD-20CF, U+2113, U+2C60-2C7F, U+A720-A7FF; src:local('Rubik'), local('Rubik-Regular'), url('/fonts/rubik-latin-ext-400.woff2?ver=1606167081') format('woff2'); } @font-face { font-family:'Rubik'; font-style:normal; font-weight:700; font-display:swap; unicode-range:U+0100-024F, U+0259, U+1E00-1EFF, U+2020, U+20A0-20AB, U+20AD-20CF, U+2113, U+2C60-2C7F, U+A720-A7FF; src:local('Rubik Bold'), local('Rubik-Bold'), url('/fonts/rubik-latin-ext-700.woff2?ver=1606167081') format('woff2'); }

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#smx @jonoalderson @font-face { font-family:'Rubik'; font-style:normal; font-weight:400; font-display:fallback; unicode-range:U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; src:local('Rubik'), local('Rubik-Regular'), url('/fonts/rubik-latin-400.woff2?ver=1606167081') format('woff2'); } @font-face { font-family:'Rubik'; font-style:normal; font-weight:700; font-display:swap; unicode-range:U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; src:local('Rubik Bold'), local('Rubik-Bold'), url('/fonts/rubik-latin-700.woff2?ver=1606167081') format('woff2'); } @font-face { font-family:'Rubik'; font-style:normal; font-weight:400; font-display:swap; unicode-range:U+0100-024F, U+0259, U+1E00-1EFF, U+2020, U+20A0-20AB, U+20AD-20CF, U+2113, U+2C60-2C7F, U+A720-A7FF; src:local('Rubik'), local('Rubik-Regular'), url('/fonts/rubik-latin-ext-400.woff2?ver=1606167081') format('woff2'); } @font-face { font-family:'Rubik'; font-style:normal; font-weight:700; font-display:swap; unicode-range:U+0100-024F, U+0259, U+1E00-1EFF, U+2020, U+20A0-20AB, U+20AD-20CF, U+2113, U+2C60-2C7F, U+A720-A7FF; src:local('Rubik Bold'), local('Rubik-Bold'), url('/fonts/rubik-latin-ext-700.woff2?ver=1606167081') format('woff2'); }

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#smx @jonoalderson body, input, button, select, textarea { font-family: -apple-system, BlinkMacSystemFont, avenir next, avenir, segoe ui, helvetica neue, helvetica, Ubuntu, roboto, noto, arial, sans-serif; } @font-face { font-family:'Rubik'; font-style:normal; font-weight:400; font-display:optional; unicode-range:U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; src:local('Rubik'), local('Rubik-Regular'), url('/fonts/rubik-latin-400.woff2?ver=1606167081') format('woff2'); } @font-face { font-family:'Rubik'; font-style:normal; font-weight:700; font-display:swap; unicode-range:U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; src:local('Rubik Bold'), local('Rubik-Bold'), url('/fonts/rubik-latin-700.woff2?ver=1606167081') format('woff2'); } @font-face { font-family:'Rubik'; font-style:normal; font-weight:400; font-display:swap; unicode-range:U+0100-024F, U+0259, U+1E00-1EFF, U+2020, U+20A0-20AB, U+20AD-20CF, U+2113, U+2C60-2C7F, U+A720-A7FF; src:local('Rubik'), local('Rubik-Regular'), url('/fonts/rubik-latin-ext-400.woff2?ver=1606167081') format('woff2'); } @font-face { font-family:'Rubik'; font-style:normal; font-weight:700; font-display:swap; unicode-range:U+0100-024F, U+0259, U+1E00-1EFF, U+2020, U+20A0-20AB, U+20AD-20CF, U+2113, U+2C60-2C7F, U+A720-A7FF; src:local('Rubik Bold'), local('Rubik-Bold'), url('/fonts/rubik-latin-ext-700.woff2?ver=1606167081') format('woff2'); }

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#smx @jonoalderson @font-face { font-family: "Rubik-fallback-Arial"; size-adjust: 97.38%; ascent-override: 99%; letter-spacing: -0.0135em; src: local("Arial"); } body, input, button, select, textarea { font-family: -apple-system, BlinkMacSystemFont, avenir next, avenir, segoe ui, helvetica neue, helvetica, Ubuntu, roboto, noto, Rubik-fallback-Arial, sans-serif; }

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#smx @jonoalderson My point isn’t, “fonts are complex”

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#smx @jonoalderson

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#smx @jonoalderson My point isn’t, “go learn all of this” or “make your fonts perfect”

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#smx @jonoalderson Deja vu?

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#smx @jonoalderson Publishing & optimization suite Telco infrastructure (ﬁbre, security, analytics) App store Operating system

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#smx @jonoalderson Anticlimactic, eh?

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#smx @jonoalderson “We can do this ourselves”

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#smx @jonoalderson Stop trying to make a perfect website

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#smx @jonoalderson Stop accepting that it’s normal for your website to be crappy

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#smx @jonoalderson Get other people to make your website perfect for you

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#smx @jonoalderson Telco infrastructure (ﬁbre, security, analytics) Publishing & optimization suite App store Operating system