Hi
I found a lot of css and html bugs in w3c validators. What surprises me, because in the original version of the "Eventa" template presented by the t4 framework, there were no errors, eg in css and in html there were traces of them. For starters, I put errors from the CSS validator below.
Please let me know, are these bugs a result of my wrong template? are they simply already in the "event" template install. Of course, I am also asking you for an answer, how can I get rid of these errors as soon as possible.
1. [data-icon]:before Value Error : speak none is not a speak value : none
2. Parse Error }@charset "UTF-8";
3. abbr[title], abbr[data-original-title] Property text-decoration-skip-ink doesn't exist : none
4. .was-validated .custom-select:valid, .custom-select.is-valid Value Error : background "calc(0.75em + 0.375rem) calc(0.75em + 0.375rem)" is not a background value : url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 4 5'%3e%3cpath fill='%23343a40' d='M2 0L0 2h4zm0 5L0 3h4z'/%3e%3c/svg%3e") no-repeat right 0.75rem center / 8px 10px,url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 8'%3e%3cpath fill='%2328a745' d='M2.3 6.73L.6 4.53c-.4-1.04.46-1.4 1.1-.8l1.1 1.4 3.4-3.8c.6-.63 1.6-.27 1.2.7l-4 4.6c-.43.5-.8.4-1.1.1z'/%3e%3c/svg%3e") #fff no-repeat center right 1.75rem / "calc(0.75em + 0.375rem) calc(0.75em + 0.375rem)"
5. .was-validated .custom-select:invalid, .custom-select.is-invalid Value Error : background "calc(0.75em + 0.375rem) calc(0.75em + 0.375rem)" is not a background value : url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 4 5'%3e%3cpath fill='%23343a40' d='M2 0L0 2h4zm0 5L0 3h4z'/%3e%3c/svg%3e") no-repeat right 0.75rem center / 8px 10px,url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='%23dc3545' viewBox='-2 -2 7 7'%3e%3cpath stroke='%23dc3545' d='M0 0l3 3m0-3L0 3'/%3e%3ccircle r='.5'/%3e%3ccircle cx='3' r='.5'/%3e%3ccircle cy='3' r='.5'/%3e%3ccircle cx='3' cy='3' r='.5'/%3e%3c/svg%3E") #fff no-repeat center right 1.75rem / "calc(0.75em + 0.375rem) calc(0.75em + 0.375rem)"
6. .toast Property backdrop-filter doesn't exist : blur(10px)
7. .tagspopular ul > li Value Error : color Parse Error grays()
8. .items-leading .col .item-image Value Error : max-height only 0 can be a unit. You must put a unit after your number : 13
9. .items-row .item .item-image Value Error : max-height only 0 can be a unit. You must put a unit after your number : 13
10. form:not(.form-no-margin) .control-group .field-calendar input[type="text"] Value Er
11. game-controller-b:before, .ion-logo-github:before, .ion-logo-google:before, .ion-logo-googleplus:before, .ion-logo-hackernews:before, .ion-logo-html5:before, .ion-logo-instagram:before, .ion-logo-ionic:before, .ion-logo-ionitron:before, .ion-logo-javascript:before, .ion-logo-linkedin:before, .ion-logo-markdown:before, .ion-logo-model-s:before, .ion-logo-no-smoking:before, .ion-logo-nodejs:before, .ion-logo-npm:before, .ion-logo-octocat:before, .ion-logo-pinterest:before, .ion-logo-playstation:before, .ion-logo-polymer:before, .ion-logo-python:before, .ion-logo-reddit:before, .ion-logo-rss:before, .ion-logo-sass:before, .ion-logo-skype:before, .ion-logo-slack:before, .ion-logo-snapchat:before, .ion-logo-steam:before, .ion-logo-tumblr:before, .ion-logo-tux:before, .ion-logo-twitch:before, .ion-logo-twitter:before, .ion-logo-usd:before, .ion-logo-vimeo:before, .ion-logo-vk:before, .ion-logo-whatsapp:before, .ion-logo-windows:before, .ion-logo-wordpress:before, .ion-logo-xbox:before, .ion-logo-xing:before, .ion-logo-yahoo:before, .ion-logo-yen:before, .ion-logo-youtube:before, .ion-md-add:before, .ion-md-add-circle:before, .ion-md-add-circle-outline:before, .ion-md-airplane:before, .ion-md-alarm:before, .ion-md-albums:before, .ion-md-alert:before, .ion-md-american-football:before, .ion-md-analytics:before, .ion-md-aperture:before, .ion-md-apps:before, .ion-md-appstore:before, .ion-md-archive:before, .ion-md-arrow-back:before, .ion-md-arrow-down:before, .ion-md-arrow-dropdown:before, .ion-md-arrow-dropdown-circle:before, .ion-md-arrow-dropleft:before, .ion-md-arrow-dropleft-circle:before, .ion-md-arrow-dropright:before, .ion-md-arrow-dropright-circle:before, .ion-md-arrow-dropup:before, .ion-md-arrow-dropup-circle:before, .ion-md-arrow-forward:before, .ion-md-arrow-round-back:before, .ion-md-arrow-round-down:before, .ion-md-arrow-round-forward:before, .ion-md-arrow-round-up:before, .ion-md-arrow-up:before, .ion-md-at:before, .ion-md-attach:before, .ion-md-backspace:before, .ion-md-barcode:before, .ion-md-baseball:before, .ion-md-basket:before, .ion-md-basketball:before, .ion-md-battery-charging:before, .ion-md-battery-dead:before, .ion-md-battery-full:before, .ion-md-beaker:before, .ion-md-bed:before, .ion-md-beer:before, .ion-md-bicycle:before, .ion-md-bluetooth:before, .ion-md-boat:before, .ion-md-body:before, .ion-md-bonfire:before, .ion-md-book:before, .ion-md-bookmark:before, .ion-md-bookmarks:before, .ion-md-bowtie:before, .ion-md-briefcase:before, .ion-md-browsers:before, .ion-md-brush:before, .ion-md-bug:before, .ion-md-build:before, .ion-md-bulb:before, .ion-md-bus:before, .ion-md-business:before, .ion-md-cafe:before, .ion-md-calculator:before, .ion-md-calendar:before, .ion-md-call:before, .ion-md-camera:before, .ion-md-car:before, .ion-md-card:before, .ion-md-cart:before, .ion-md-cash:before, .ion-md-cellular:before, .ion-md-chatboxes:before, .ion-md-chatbubbles:before, .ion-md-checkbox:before, .ion-md-checkbox-outline:before, .ion-md-checkmark:before, .ion-md-checkmark-circle:before, .ion-md-checkmark-circle-outline:before, .ion-md-clipboard:before, .ion-md-clock:before, .ion-md-close:before, .ion-md-close-circle:before, .ion-md-close-circle-outline:before, .ion-md-cloud:before, .ion-md-cloud-circle:before, .ion-md-cloud-done:before, .ion-md-cloud-download:before, .ion-md-cloud-outline:before, .ion-md-cloud-upload:before, .ion-md-cloudy:before, .ion-md-cloudy-night:before, .ion-md-code:before, .ion-md-code-download:before, .ion-md-code-working:before, .ion-md-cog:before, .ion-md-color-fill:before, .ion-md-color-filter:before, .ion-md-color-palette:before, .ion-md-color-wand:before, .ion-md-compass:before, .ion-md-construct:before, .ion-md-contact:before, .ion-md-contacts:before, .ion-md-contract:before, .ion-md-contrast:before, .ion-md-copy:before, .ion-md-create:before, .ion-md-crop:before, .ion-md-cube:before, .ion-md-cut:before, .ion-md-desktop:before, .ion-md-disc:before, .ion-md-document:before, .ion-md-done-all:before, .ion-md-download:before, .ion-md-easel:before, .ion-md-egg:before, .ion-md-exit:before, .ion-md-expand:before, .ion-md-eye:before, .ion-md-eye-off:before, .ion-md-fastforward:before, .ion-md-female:before, .ion-md-filing:before, .ion-md-film:before, .ion-md-finger-print:before, .ion-md-fitness:before, .ion-md-flag:before, .ion-md-flame:before, .ion-md-flash:before, .ion-md-flash-off:before, .ion-md-flashlight:before, .ion-md-flask:before, .ion-md-flower:before, .ion-md-folder:before, .ion-md-folder-open:before, .ion-md-football:before, .ion-md-funnel:before, .ion-md-gift:before, .ion-md-git-branch:before, .ion-md-git-commit:before, .ion-md-git-compare:before, .ion-md-git-merge:before, .ion-md-git-network:before, .ion-md-git-pull-request:before, .ion-md-glasses:before, .ion-md-globe:before, .ion-md-grid:before, .ion-md-hammer:before, .ion-md-hand:before, .ion-md-happy:before, .ion-md-headset:before, .ion-md-heart:before, .ion-md-heart-dislike:before, .ion-md-heart-empty:before, .ion-md-heart-half:before, .ion-md-help:before, .ion-md-help-buoy:before, .ion-md-help-circle:before, .ion-md-help-circle-outline:before, .ion-md-home:before, .ion-md-hourglass:before, .ion-md-ice-cream:before, .ion-md-image:before, .ion-md-images:before, .ion-md-infinite:before, .ion-md-information:before, .ion-md-information-circle:before, .ion-md-information-circle-outline:before, .ion-md-jet:before, .ion-md-journal:before, .ion-md-key:before, .ion-md-keypad:before, .ion-md-laptop:before, .ion-md-leaf:before, .ion-md-link:before, .ion-md-list:before, .ion-md-list-box:before, .ion-md-locate:before, .ion-md-lock:before, .ion-md-log-in:before, .ion-md-log-out:before, .ion-md-magnet:before, .ion-md-mail:before, .ion-md-mail-open:before, .ion-md-mail-unread:before, .ion-md-male:before, .ion-md-man:before, .ion-md-map:before, .ion-md-medal:before, .ion-md-medical:before, .ion-md-medkit:before, .ion-md-megaphone:before, .ion-md-menu:before, .ion-md-mic:before, .ion-md-mic-off:before, .ion-md-microphone:before, .ion-md-moon:before, .ion-md-more:before, .ion-md-move:before, .ion-md-musical-note:before, .ion-md-musical-notes:before, .ion-md-navigate:before, .ion-md-notifications:before, .ion-md-notifications-off:before, .ion-md-notifications-outline:before, .ion-md-nuclear:before, .ion-md-nutrition:before, .ion-md-open:before, .ion-md-options:before, .ion-md-outlet:before, .ion-md-paper:before, .ion-md-paper-plane:before, .ion-md-partly-sunny:before, .ion-md-pause:before, .ion-md-paw:before, .ion-md-people:before, .ion-md-person:before, .ion-md-person-add:before, .ion-md-phone-landscape:before, .ion-md-phone-portrait:before, .ion-md-photos:before, .ion-md-pie:before, .ion-md-pin:before, .ion-md-pint:before, .ion-md-pizza:before, .ion-md-planet:before, .ion-md-play:before, .ion-md-play-circle:before, .ion-md-podium:before, .ion-md-power:before, .ion-md-pricetag:before, .ion-md-pricetags:before, .ion-md-print:before, .ion-md-pulse:before, .ion-md-qr-scanner:before, .ion-md-quote:before, .ion-md-radio:before, .ion-md-radio-button-off:before, .ion-md-radio-button-on:before, .ion-md-rainy:before, .ion-md-recording:before, .ion-md-redo:before, .ion-md-refresh:before, .ion-md-refresh-circle:before, .ion-md-remove:before, .ion-md-remove-circle:before, .ion-md-remove-circle-outline:before, .ion-md-reorder:before, .ion-md-repeat:before, .ion-md-resize:before, .ion-md-restaurant:before, .ion-md-return-left:before, .ion-md-return-right:before, .ion-md-reverse-camera:before, .ion-md-rewind:before, .ion-md-ribbon:before, .ion-md-rocket:before, .ion-md-rose:before, .ion-md-sad:before, .ion-md-save:before, .ion-md-school:before, .ion-md-search:before, .ion-md-send:before, .ion-md-settings:before, .ion-md-share:before, .ion-md-share-alt:before, .ion-md-shirt:before, .ion-md-shuffle:before, .ion-md-skip-backward:before, .ion-md-skip-forward:before, .ion-md-snow:before, .ion-md-speedometer:before, .ion-md-square:before, .ion-md-square-outline:before, .ion-md-star:before, .ion-md-star-half:before, .ion-md-star-outline:before, .ion-md-stats:before, .ion-md-stopwatch:before, .ion-md-subway:before, .ion-md-sunny:before, .ion-md-swap:before, .ion-md-switch:before, .ion-md-sync:before, .ion-md-tablet-landscape:before, .ion-md-tablet-portrait:before, .ion-md-tennisball:before, .ion-md-text:before, .ion-md-thermometer:before, .ion-md-thumbs-down:before, .ion-md-thumbs-up:before, .ion-md-thunderstorm:before, .ion-md-time:before, .ion-md-timer:before, .ion-md-today:before, .ion-md-train:before, .ion-md-transgender:before, .ion-md-trash:before, .ion-md-trending-down:before, .ion-md-trending-up:before, .ion-md-trophy:before, .ion-md-tv:before, .ion-md-umbrella:before, .ion-md-undo:before, .ion-md-unlock:before, .ion-md-videocam:before, .ion-md-volume-high:before, .ion-md-volume-low:before, .ion-md-volume-mute:before, .ion-md-volume-off:before, .ion-md-walk:before, .ion-md-wallet:before, .ion-md-warning:before, .ion-md-watch:before, .ion-md-water:before, .ion-md-wifi:before, .ion-md-wine:before, .ion-md-woman:before Value Error : speak none is not a speak value : none