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Как сделать футер bootstrap 4

Как сделать футер bootstrap 4

A responsive Bootstrap 4 landing page theme by Start Bootstrap. All Start Bootstrap templates are free to download and open source. A Bootstrap 4 template featuring full page width image backgrounds. All Start Bootstrap templates are free to download and open source. Stack Overflow | The World’s Largest Online Community for Developers. CSS Reference CSS Browser Support CSS Selector Reference Bootstrap 3 Reference Bootstrap 4 Reference neisav.преображенскийдом.рф Reference Icon The required attribute is a boolean. CSS Reference CSS Browser Support CSS Selector Reference Bootstrap 3 Reference Bootstrap 4 Reference neisav.преображенскийдом.рф Reference Icon Reference Sass Reference. JavaScript.

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By using our site, you acknowledge that you have read and understand our Cookie Policy , Privacy Policy , and our Terms of Service. Ofcourse I can just use this code:. So my solution could possibly be CSS-based. Edit: The question is: how do people create placeholders in selectboxes? But it has already been answered, cheers. And using this results in the selected value always being grey even after selecting a real option :.

Browser Support

The hidden element has similar traits as display: none in Safari, IE, Project Spartan needs checking where the option is visible in dropdown but is not selectable. Once a value has been set the :invalid pseudo-class will be dropped. You can optionally also use :valid if you so wish.

Most browsers support this pseudo-class. This works best with custom styled select elements; In some cases i. You can find some examples and more about compatibility at developer. I had the same problem and while searching came across this question, and after I found good solution for me I would like to share it with you guys in case some one can benefit from it. I hope this helps someone :. Here I have modified David answer accepted answer.

On his answer, he put disabled and selected attribute on option tag but when we also put hidden tag then it will look much better. By adding an extra hidden attribute on option tag, will prevent the "Select your option" option from being re-selecting after the "Durr" option is selected.

User should not see the placeholder in select options. Here is a CSS solution that works beautifully. The content is added and absolutely positioned relative to the container after the containing element via :after pseudo-class. It gets its text from the placeholder attribute that I defined where I used the directive attr placeholder.

Another key factor is pointer-events: none - this allows clicks on the placeholder text to pass through to the select. I add the. All you have to do is create a simple list with few data attributes. The code automatically turns the list into a selectable dropdown. It also adds a hidden input to hold the selected value, so it can be used in a form. Also using CSS, all the drawbacks of select can be overcome e. Tidied up the output a little bit and turned this into a object.

Как сделать футер bootstrap 4

Current output:. Update: Rewritten this again. Instead of using a list, we can just use a select. JSFiddle , GitHub. I just want to add how I adopted this answer for a controlled-select React Component , because it took me a few tries to figure it out. Note, react-select handles placeholders in selects through a complex system of various inputs and html elements.

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In React, for a controlled component , you cannot add the selected attribute to your options. React handles the state of the select via a value attribute upon the select itself, along with a change handler, where the value should match one of the value attributes within the options themselves. Since it would be improper and in fact would throw an error to add the selected attribute to one of the options, what then?

The answer is simple once you think about it. Since we want our first option to be selected as well as disabled and hidden , we need to do three things:. In Angular we can add an option as placeholder that can be hidden in option dropdown. We can even add a custom dropdown icon as background that replaces browser dropdown icon.

The trick is to enable placeholder css only when value is not selected. Here is a working example how to achieve this with pure javascript that handles the options color after the first click:. In respect to all solutions above, but this one seems to be most valid due to HTML specs:.

UPDATE: Pardon me for this incorrect answer, this is definitely not a placeholder solution for the select element, but a title for grouped options under opened select element list. Thank you for your interest in this question.

Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation on this site the association bonus does not count. Would you like to answer one of these unanswered questions instead? Ask Question.

William Perron 6 6 silver badges 14 14 bronze badges. Thomas Thomas 7, 6 6 gold badges 18 18 silver badges 23 23 bronze badges. Andreas Grapentin 3, 3 3 gold badges 29 29 silver badges 51 51 bronze badges. David David It shows the next one by default, in this case "Durr". I usually add both disabled and selected. Seems to work in FF too. This answer makes the option gray in the drop down; but not the select element.

William Isted William Isted 7, 3 3 gold badges 20 20 silver badges 39 39 bronze badges. Explorer11 ignores the display:none style. Kudos to MattW for working out :invalid way before I did.

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You could also add a rule to "reset" the color of the options in supporting browsers as in this fiddle. This would help to reinforce that the disbled option is a placeholder.

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MattW MattW 3, 1 1 gold badge 8 8 silver badges 10 10 bronze badges. Amazing - it was the answer at the bottom with no upvotes yet that was the simplest, and actually works perfectly. Hopefully this answer will rise to the top. As an aside, the :required selector is not supported in IE8 and below. The :invalid selector is not supported in IE9 and below. No solution for a non-required select? Something like this maybe? Albireo Albireo 8, 10 10 gold badges 54 54 silver badges 86 86 bronze badges.

Why did you called the change function explicitly. I just added hidden attribute in option like below, It is working fine for me. Ajithkumar S Ajithkumar S 4 4 silver badges 12 12 bronze badges.

But you cannot unset it.

Definition and Usage

But inside the form anyway user has to select any one of that options. If its not a required field remove the hidden attribute then.

Dani-Br Dani-Br 1, 2 2 gold badges 17 17 silver badges 27 27 bronze badges. In some browsers he can still select the display:none option, becouse it is not hidden. Note: the onload function corrects a refresh bug. Rob Atwater 3 2 2 bronze badges. Jacob Schneider Jacob Schneider 5 5 silver badges 18 18 bronze badges. I have a tabbed pop-up and the drop down menu from tab3 takes input from tab2, which it displays. Your answer is good and this is a corner case, but I would have expected the default value to show up as the first option, instead you get a blank drop down.

Как сделать футер bootstrap 4

See here: jsfiddle. I see signs of correct answers but to bring it all together this would be my solution. Eric G 2, 3 3 gold badges 23 23 silver badges 42 42 bronze badges.

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Durr is in gray after you select it. This forces the closed select box to be gray always. Will Wang Will Wang 5 5 silver badges 6 6 bronze badges. This is excellent! Nawaraj Nawaraj 2 2 silver badges 14 14 bronze badges. For example, this answer prevents the "Select your option" option from being re-selecting after the "Durr" option is selected.

Which attribute causes this behavior?

  • Можно ли есть забродивший борщ
  • Roman Yakoviv Roman Yakoviv 6 6 silver badges 16 16 bronze badges. I recommand this one as it does not feature the placeholder text among the list, at least in Chrome. Jean-philippe Emond Jean-philippe Emond 1, 1 1 gold badge 10 10 silver badges 26 26 bronze badges. But thanks any way for that answer, it worked for me. Eric G Eric G 2, 3 3 gold badges 23 23 silver badges 42 42 bronze badges. Thanks, this was the best for me, as you said